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We need to elongate the time frame upon which we judge the balance in our life, but we need to elongate it without falling into the trap of the "I'll have a life when I retire, when my kids have left home, when my wife has divorced me, my health is failing, I've got no mates or interests left." (Laughter) | "á፠áĄááźáááşá¸á
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My wife, who is somewhere in the audience today, called me up at the office and said, "Nigel, you need to pick our youngest son" -- Harry -- "up from school." Because she had to be somewhere else with the other three children for that evening. | "Nigel áážááş ááťá˝ááşááááŻáˇ áĄáááşááŻáśá¸ááŹá¸ Harry ááᯠááťáąáŹááşá¸á ááźááŻááŹáááŻáˇ áááŻáááşááąáŹáş"áá˛áˇá áá°ááᏠáĄá˛ááŽáááąá áĄááźáŹá¸áááąá¸ ááŻáśá¸ááąáŹááşáá˛áˇ áá
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So I left work an hour early that afternoon and picked Harry up at the school gates. We walked down to the local park, messed around on the swings, played some silly games. I then walked him up the hill to the local cafe, and we shared a pizza for two, then walked down the hill to our home, and I gave him his bath and ... | Harry ááᯠááťáąáŹááşá¸ááśááŤá¸ááážáŹ ááźááŻáá˛áˇáááşá ááťá˝ááşááąáŹáşáááŻáˇ áĄááŽá¸áážááááşá¸ááźáśáᎠááťážáąáŹááşáááşá áááşá¸áá˝áąááąáŤáşáážáŹ ááąáŹáˇá ááąáŤááşáááá˝áą áá
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I then read him a chapter of Roald Dahl's "James and the Giant Peach." I then put him to bed, tucked him in, gave him a kiss on his forehead and said, "Goodnight, mate," and walked out of his bedroom. | Roald Dahl áá˛áˇ "James and the Giant Peach á áĄáááşá¸áá
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As I was walking out of his bedroom, he said, "Dad?" I went, "Yes, mate?" He went, "Dad, this has been the best day of my life, ever." I hadn't done anything, hadn't taken him to Disney World or bought him a Playstation. | "ááąááąááŹá¸" ááťá˝ááşááąáŹáşá "áĄáąá¸á፠ááŹá¸áá" áá°á "ááąááąá ááŽááąáˇáᏠááŹá¸áááážáŹ áĄááąáŹááşá¸ááŻáśá¸ ááąáˇáá˛"áá˛áˇá ááťá˝ááşááąáŹáş ááŹáážáááŻááşáá˛áˇááŤáá°á¸á áá°áˇááᯠDisney World áááŻáˇááŹá PlayStation áááşááąá¸áᏠáááŻááşáá˛áˇáá°á¸á áĄáᯠááťá˝ááşááąáŹáş ááźáąáŹááťááşááŹá áĄááąá¸áĄáá˝á˛ááąá¸áá˝áąá áĄááąá¸ááŤááŹááŤá áááŻááźáŽá¸ áááşááťááşááŽááŹá áááŻááˇáşáááážáŹ ááááŹáá˛áˇ ááźáąáŹááşá¸áááşááŹááᯠááááŻáááŻááŤáá°á¸á áážááşáááşáá˛áˇ ááąááŹáá˝áą... |
Several years ago here at TED, Peter Skillman introduced a design challenge called the marshmallow challenge. And the idea's pretty simple: Teams of four have to build the tallest free-standing structure out of 20 sticks of spaghetti, one yard of tape, one yard of string and a marshmallow. | áážá
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And since then, I've conducted about 70 design workshops across the world with students and designers and architects, even the CTOs of the Fortune 50, and there's something about this exercise that reveals very deep lessons about the nature of collaboration, and I'd like to share some of them with you. So, normally, mo... | Fortune 50 á CTO áá˝áąááąáŹááş ááŤáá˛áˇááźáŽá¸ áá°á¸ááąáŤááşá¸ááŻááşááąáŹááşááźááşá¸áá˛áˇ áááŹááĄááźáąáŹááşá¸ áááşáážááŻááşá¸áá˛áˇ áááşáááşá¸á
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As Peter tells us, not only do they produce the tallest structures, but they're the most interesting structures of them all. So the question you want to ask is: How come? | Peter ááźáąáŹááááŻáᲠáá°áááŻáˇáᏠáĄááźááˇáşááŻáśá¸ áĄááąáŹááşáĄáĄáŻáśáá˝áą ááŻááşááŻááşááŹááŹáá áĄáŹá¸ááŻáśá¸áá˛áážáŹ á
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And Peter likes to say that none of the kids spend any time trying to be CEO of Spaghetti, Inc. Right? They don't spend time jockeying for power. | Peter ááźáąáŹáááŻááŹáááąáŹáˇ áááąá¸áá
áşááąáŹááşáááž ááąáŤááşáá˝á˛áá˛áˇ CEO ááźá
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Now that we have a reasonable understanding of why austerity is very difficult. 1) There probably isn't the political will to do it. And even more, it might drive Greece into a bigger recession. | ááᯠááťá˝ááşááąáŹáşáááŻáˇ áĄááźáąáŹááşá¸áĄááŹáĄáŹá¸ááźááşáˇ áááąáŹááąáŤááşááŹá¸áááşáá˛áˇáááşá ááŹááźáąáŹááşáˇ á
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So that looks pretty good. So this is 1, 2, 3, 4, 5, and 6. So if we want to take 2/3 of 6, we can think of this whole section of the number | á/á áĄáąáżáá˝áŹááš á á ááášáąááŹáášááá˛áááŻáᏠáąááźá¸ážááášáˇááąáĄáŹááš ááźáášááášá¸áá
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Everything is interconnected. | áĄááŹááŹáᏠáááşáá˝ážááşááąááŤáááşá |
As a Shinnecock Indian, I was raised to know this. We are a small fishing tribe situated on the southeastern tip of Long Island near the town of Southampton in New York. | Shinnecock áĄááşááŽáááşá¸ á ááąáŹááşáĄááąáá˛áˇ ááŤáááŻáááááŻáˇ ááťááŻá¸ááąáŹááşááśáá˛áˇáááŤáááşá ááťá˝ááşááááŻáˇáᏠLong Island áá˛áˇ áĄáážáąáˇááąáŹááşááťáŹá¸áážáŹáážááá˛áˇ ááŤá¸ááťážáŹá¸áá˛áˇ áá°ááťááŻá
áŻáááşááąá¸ááŤá |
When I was a little girl, my grandfather took me to sit outside in the sun on a hot summer day. There were no clouds in the sky. And after a while I began to perspire. | New York á Southampton ááźááŻáˇááŹá¸áážáŹááŤá ááťá˝ááşááááşáááşááŻááşá¸á áá°ááźááşá¸áá˝áąááŹáᎠá áááşáážáŹ áĄááźááşáááşá ááąááąáŹááşáá˛áážáŹáááŻááşáááŻáˇ áĄáááŻá¸á ááąáŤáşáá˝áŹá¸ááŤáááşá ááąáŹááşá¸áááşáážáŹ ááááşáá˝áąááážááá˛áˇááŤáá°á¸á ááąáŹááşááźáŽá¸ áááĄááźáŹáážáŹ ááťá˝ááşááᏠááťá˝áąá¸ááźááşááŹááŤáááşá ááąáŹááş ááąáŹááşá¸áááşáááŻáááŻá¸ááźááźáŽá¸ áá°ááźáąáŹáááŻááşááŹá ááźááˇáşá
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John: Hi, IâÂÂm John Green. This is Crash Course World History and today weâÂÂre going to be discussing trade here in the Indian Ocean. | ááá¤ááŹááŤá ááźáşáášáąááŹáš John Green ááŤá ááŤááááťáŹáˇááááŻáášá¸áĄáťááášááášááášá¸ááŤá ááŽáąá áˇááźáášáąááŹášááᯠáˇáĄááááľáááŻááľááŹáĄááźáášá¸áá°á¸ááášá¸áąááŹáášá¸ ááášáťááášá¸áĄáąážááŹáášá¸ áąááźá¸áąááźá¸ážáááášá ááᯠáˇááášáąáá¸áááášáááŻáąážááŹáášáˇááŽáááŻáąááŹáášá¸ááźáŹá¸ááŤáá˛? áĄááŻá¸! - ááźáşáášáąááŹášáˇ áááŹáťááśáŻá¸ááááŹáťááśáŻá¸áąáá¸ááááš ááźáşáášáąááŹášááᯠáˇáąááášáá
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King Charles VI of France believed that he was made out of glass relentlessly focusing on the actions of the funny-hatted people who ruled us makes us forget that we also make history. | Green, Mr. |
Mr. Green, Mr. Green! Did Charles VI of France really believe he was made out of glass? Yes, he did but today we're talking about Indian Ocean trade and it's going to be interesting, I promise. | Green! áťááášáá
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So pay attention Also, no hats! This is a classroom not a Truman Capote beach party. | Truman Capoteáá˛áˇááášá¸áąáťáááŤááŽáááŻáášáá°á¸á áąáá¸ááŽáá
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Just as the Silk Road was not a single road, there were lots of Indian Ocean trade routes connecting various port cities around the Indian Ocean Basin, including Zanzibar and Mogadishu and Hormuz and Canton. By the way, before you criticize my pronunciation, please remember that mispronunciation is my thing and I've be... | Mogadishu, Hormuz áá˝áášáˇ Canton áĄááŤáĄááášááᯠáˇáá˝áášááášááźáášááŹá¸ááášá á
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ááá˛áá ááąááŹáášáá˝ááááááŹá¸áááá°á¸ ááŤááźáşáášáąááŹášáˇáĄáá°ááŹáááŻááŤá áąááŹáášá¸ááášááŤáááš - ááźáşáášáąááŹášááášá¸ááášá¸áááášááźáŹá¸ááášá ááŤáąááá˛áˇáĄááááľááááŻááľááŹááŻá... |
Indian Ocean trade was bigger, richer and featured more diverse players than the Silk Road but it is much less famous probably because it does not have a snazzy name. What do you think, Stan? | "Neptune Network" áááŻááŹá¸? áááŻáášáá°á¸á |
Like the Neptunian Network? No. | "The Wet Web"? áááŻáášáá°á¸á ááŤáąááŹáˇááśáŻá¸ááá˛No, that's definitely not it. |
The Wet Web? No, that's definitely not it. The Sexy Sea Lanes of South Asia? | The Sexy Sea Lanes of South Asia"? áááŻáášáá°á¸á ááŤáááźáşáášáąááŹášáˇ áááŽááá
ááŹá¸áá˝ááš ááášáá˛áááášáˇááášá |
No, that's too hard for me to say with my lisp. The Monsoon Marketplace. Thanks, Danica. | "THE MONSOON MARKETPLACE"! áąááşá¸áá°á¸áᲠDanica áĄááŻáąááŹáˇááášá
áźá˛áąááźáá˛áˇáááŻáášááášá
áŽá¸ááášá¸áá ááá CE ááŹá
áŻáąááŹááš ááá˝áášáááááŻáášáąáᏠMonsoon Marketplace áá˝ááá˛áˇááášáááŤáąááá˛áˇ áááášážááŽá¸ááźáŹá¸ááŹááŹá áááá áá˝áášáˇ áááá CE ážááŹá¸áá˛áá˝áŹ |
By about 700 CE, there was a recognizable Monsoon Marketplace but it really blew up between 1000 CE and 1200. It then declined a bit during the Pax Mongolica when overland trade became cheap and safe thanks to wait for it: | PaxMongolica áąááášážááąááŹáˇááŻáášá¸áąážááŹáášá¸ááŻáášááźáášáąáá¸ááááŻáąááŤáťááŽá¸áááŻááŻáśáťááłáśááŹáąááŹáˇ ááášá¸ááášá¸ááşááášá¸ááŹáááš ááŹáˇáąážááŹáášáˇáá˛áááŻáąááŹáˇ áąáááŤáĽáŽá¸----- |
The Mongols. Then the Indian Ocean trade surged again in the 14th and 15th centuries. | Mongols áąááźá ááŤáąááá˛áˇáĄáááľáľáááááŻááľááŹááŻáášááźáášáąáá¸á áá áá˝áášáˇ áá
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áŻáąááźáá˝ áťááášááĽáŽá¸áąááŹáˇááŹááášá ááŽáąááŹáˇááášáá°áąááźáááŻáášááźáášážááá˛? |
So who was trading? Swahili Coast cities, Islamic empires in the Middle East, India, China, Southeast Asia and not Europe, which is probably one of the other reasons that Monsoon Marketplace isn't as famous as it should be. | Swahili ááášá¸áąáťáááťáááłáˇáąááźá áĄáąááˇá˝áĄááášáááŻáášá¸áĄá
áĽááášáá
ášáĄáášááŤááŹááşáŹá¸ááĄáááľááá áááŻáášáťááášá áĄáąáá˝áˇáąááŹáášáĄáŹáá˝ - áĽáąááŹááąááŹáˇáááŻáášáá°á¸ ááŽááŹááąááŹáˇMonsoon Marketplace áááášáąáá áąááşáŹášážááŹá¸áťááášá¸áá˝áááášáˇ ááąááŹáášááá˝ááá˛áˇáá˛áˇ áĄáąážááŹáášá¸áááŻáťáá
ášáááŻáášááášá áĄáąááźá¸áá°áąááŹáášá¸áááŻááźáŹá¸áŹáşááᯠᡠááášááŹáááŻáášáťááášáá˝áŹáąááťááŽá¸ááášáˇááŤá¸áĄááźáášááášá
áźáášááŤá¸áááŻá¸áááŻáá˛áˇáá˝áşááš ááášááŻáášáá°á¸áááá... |
Immediately after your second wedding you commit suicide by slicing open your belly and offer your intestines to your horrible new husband as a wedding present. | Stan áąá ááźáşáášáąááŹášáąáťááŹáąááŹáˇááąáťááŹááşáášáá°á¸ááŤáąááá˛áˇáąáťááŹááááš |
No Stan, I don't want to say it but I have to. That really took guts, Kota Rani. Sorry. | Kota Rani áąá ááŤááąááŹáˇáááášááá˛ááá˝áááŹáá˛á áąááŹáášá¸ááášááŤáááš ááŤáąááźáĄáŹá¸ááśáŻá¸áááášááşáŹá¸áĄáąááá
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However, when it becomes cheaper thanks to trade suddenly more people can have better houses. Much of the timber that was shipped in the Monsoon Marketplace came from Africa which is kind of emblematic. Africa produced a lot of the raw materials | Monsoon Marketplace ááąáááášááᯠáˇáá˛áˇáá
ášáąááźáááşáŹá¸áąááŹáĄáŹá¸áťááášáˇ áĄáŹáááááááŻáášáááŹáááš ááŽááŹááĄáááášá¸áĄáá˝áášáťáá
ášááááşáłá¸áąááŤáˇááĄáŹááááááááá
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like animal hides and skin and ivory and gold. The Swahili city states imported finished goods such as silk and porcelain from China and cotton cloth from India. Spices and foodstuffs like rice were shipped from Southeast Asia and especially Sri Lanka where black pepper was a primary export and the Islamic world provid... | Swahili áťáááł áˇáąááŹášáąááźááááŻá¸áá˝áášáˇáąážááźáĄáąááşáŹááášáąááźááᯠáááŻáášáťááášáááášááźáášá¸ááášá áąááŹáášáĄáááľáááááşáášááášáąááźá ááášá¸ááášáĄáąááá¸áĄážáááłáášáá˝áášááášáááŻáĄá
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That's exactly what happened to such an extent that a powerful merchant state called Srivijaya rose up on Sumatra. For a while, Srivijaya dominated trade in the region because there were so many ships going through the Strait of Malacca to and from China. | Srivijaya á Sumatraáá˝áŹáąáááąááŤáášáá˛áˇááášá áĄááşááášáĄááášá¸ááášáĄááźááš Srivijaya á ááŻáášááźáášáááááŻáąáááĄááźáášá¸ážááŽá¸á
ááŻá¸áá˛áˇáááš ááŹáąážááŹáášáˇáá˛áááŻáąááŹáˇáááŻáá˝áŹ ááąáá¤áŹáĄááşáŹá¸áĄááşáŹá¸ááŹáááŻáášáťááášáááŻáĄááźáŹá¸áĄáťáááš ááŹááá áŹáąáááášážááŹá¸ áá˝áťááášááźáŹá¸ážáááášá ááŤáąááá˛áˇáąááŹááš ááŹáášááášá¸áá
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But as we will see in another episode that this trade abruptly declined in the 15th century and with it so did Srivijaya. This brings up a key point about Indian Ocean trade which is that it was indispensable to the creation of certain city states like Srivijaya and the city states of the Swahili Coast. | Srivijaya áá˛ááŽáááŻáťáá
ášáá˛áˇááášá ááŤááĄááááľááááŻááľááŹááŻáášááźáášáąáá¸áá˛áˇáąááŹáˇááşáášáťáá
ášááášá Srivijaya ááᯠSwahili ááášá¸áąááşáááŻáš áááşááł áˇáťáááł áˇáąááŹášáąááź ááášááášá¸áááš ááá˝áááťáá
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ášááášá ááŻáášááźáášááááá˝ááá˛ááŽáąáááŹáąááźááŹááşáášá¸ááŹážááźáášáááᯠáˇáąáá¸áąáᏠáąáááąááŹáášáąáááąááŤáášášááŹáá˝áŹáááŻáášáá°á¸á ááŽáťáááł áˇáąááŹášáąááźáĄááźáášááŻáášááźáášáááᏠááşáášá¸ááŹáááźáášááááá˛áˇáĄ ááášá¸áťáá
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If you were asked, what happened to you before you took your very first breath, would you know? Did you know that learning about the time from just before you were conceived until after you were born, could improve the quality of your life? What do you know about your earliest experiences? | áážááşáááŻáˇááᯠáážááşáááŻáˇ ááááŚá¸ááŻáśá¸áĄááźáááş áĄáááşááᯠááážá°áᎠááŹáá˝áąááźá
áşááťááşáá˛áˇááźáąáŹááşá¸ááᯠááąá¸ááźááˇáşáááşáááŻáááşá áážááşáááŻáˇ áĄá˛ááŤááᯠááźáąáááŻááşááŤáˇáááŹá¸? ááźáŽá¸ááąáŹáˇ áážááşáááŻáˇ ááášááąáááşááŹááťáááşááž áá˝áąá¸ááŹáá˛áˇáĄáá áĄááťáááşááŹá áĄááźáąáŹááşá¸ááᯠáááážááááŻááşááťážááş áážááşáááŻáˇáá˛áˇ áááĄáááşáĄáá˝áąá¸ááᯠááźážááˇáşáááşáááŻáˇ ááááŻááşáá˛áˇáážáŹáááŻááąáŹ áážááşáááŻáˇ ááááźááŤáááŹá¸? áážááşáááŻáˇáᏠáážááşáááŻáˇá... |
Was your mother mourning the loss of a loved one? Was she the victim of domestic violence? Was it toxic perhaps? | áážááşáááŻáˇáá˛áˇ áááááşáᏠááťá
áşááźááşáááŻá¸áá° ááŚá¸ áá˝ááşáá˝ááşáá˛áˇáááŻáˇ áááŻááźá˝áąá¸ááąáá˛áˇáááŹá¸? áá°ááᏠáĄáááşáá˝ááşá¸ áĄááźááşá¸áááşáážáŻáá˛áˇ ááŹá¸ááąáŹááşááťáŹá¸ ááźá
áşáá˛áˇáááŹá¸? ááŤáážáááŻááş áĄá˛ááŽáážáŹ áĄááááşáĄááąáŹááşááťáŹá¸ áážáááąáá˛áˇáááŹá¸? áĄáŹááŹááá˝áąááᯠááźááşáˇáááşá¸ááąá¸áá˛áˇ ááťááşááźááŻá¸áážááááşáˇ ááťá˝ááşááááŻáˇáᏠááŽáááŻáááşá áĄáááş áá˛áˇ áá°á¸áá
áşááąá¸áá˝áąáááŻá፠ááážááááŻááşáááŻáˇááŤá áĄá˛ááŽááᯠááážáááśá
áŹá¸áážáŻáá˝áą áááşá... |
During those moments I often wondered, if Sultan is this aware when he should have been inside his mother for at least another 2 months, could it be that babies inside the womb are just as aware of what goes on around them? After becoming a member of the Association for Pre and Perinatal Psychology, I discovered that e... | Association for Pre and Perinatal Psychology áá˛áˇ áĄáá˝á˛áˇáááş ááŚá¸ ááźá
áşááŹáá˛áˇáá˛áˇ ááąáŹááşáážáŹ ááťá˝ááşáá áá˝áąá¸áááşá
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áşááťááşáááťáž áĄááŹáááŻááşá¸áᏠááąáážááş ááŻáśá
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What I found really interesting is when I talk to people about how the way we come into the world affects us, most people say, "It makes so much sense!" or, that they wished they would have known, because then they would have done things differently. During my life, I discovered that nothing ever goes away, until it te... | "ááŻááşáááşá áĄá˛á፠ááááˇáş áááááˇáşáá˛áˇ áĄááťááşáá˛!" ááŤáážáááŻááşá áĄá˛ááŽáĄááźáąáŹááşá¸ááᯠáá°áááŻáˇ ááááťáŹá¸áááááŻáˇ ááąáŹááşá¸áá˛áˇáááŻááşááŹá áĄá˛ááŽáááŻáááá˛áˇáááş áĄááŹáá˝áąááᯠáááťááŻá¸áááŻáś ááŻááşáá˛áˇááźáážáŹá፠áááŻáᏠá
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áşááá˝áŹá¸áááŻááşááźááŤá ááťá˝ááşá áááááşáá˛áˇ ááŽáááŻá¸áá˛á áĄáááşáĄ... |
"I finally understand why had it been so difficult for me to find my voice and to express myself, unless I scream into a microphone on stage." I also found it heartbreaking when I learned that the tragic characteristics that Saddam Hussein and Hitler shared with almost 75% of death row inmates here in the United States... | "ááťá˝ááşááąáŹáşáᏠááááááᯠááŻááşááąáŤáşááźáąáŹáááş ááťá˝ááşááąáŹáˇáĄááśááᯠáážáŹáá˝áąááŹáážáŹ áááşáá˛áá˛áˇáᏠáááŻááşááááŻááŻááşá¸ááᯠááŻáśá¸áážáᏠáĄáąáŹáşáá
áş áááŻááşáá˛áˇááźááşá¸áá˛áˇ áĄááźáąáŹááşá¸áááşá¸áááŻá áĄááŻááťáážáᏠááťá˝ááşááąáŹáş ááŹá¸áááşááŹááźáŽá" ááźáŽá¸ááąáŹáˇ Saddam Hussein áá˛áˇ Hitler áááŻáˇáᏠááťá˝ááşááááŻáˇ áĄááąáááááş ááźááşááąáŹááşá
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(Applause) | (áááşááŻááşááŽá¸ááśááťáŹá¸) |
We're asked to look at the table below. From the information given, is there a functional relationship between each person and his or her height? | ááťá˝ááşááąáŹáşáááŻáˇ ááźáąáážááşá¸áááŻáˇ ááŽáĄáąáŹááşá áááŹá¸ááᯠááŻáśá¸áááŻááşá¸áááşá ááąá¸ááŹá¸áá˛áˇ áĄááťááşáĄáááşáá˝áąáĄáá ááŽáážáŹ áá°áá
áşááąáŹááşá
áŽáá˛áˇ áá°áá˛áˇáĄáááşáĄááźááşáˇááźáŹá¸áážáŹ áážáŽááťááşáááşáá˝ááşáážáŻ (functional relationship) áážáááŤáááŹá¸á ááááŚá¸ááŻáśá¸ áĄáááşá
ááşá¸á
áŹá¸ááážáŹá functional relationship áááŻááŹááŹáᲠáááŻááŹááŤá relationship (áááşáá˝ááşáážáŻ) áááąáŹáˇ ááąááťáŹááąáŤááşáážááááşá áĄááťááşáĄáááşáá˝áąá á... |
There are not two heights for Nathan. There is only one height. And for any one of these people that we can input into the function, there's only one height associated with them, so it is a functional relationship. | Nathan áá˛áˇáĄáááşá áážá
áşááŻááážááá°á¸á áĄáááşáá
áşááŻáᲠáážááááşá áááşáá°áˇááŹáááşáᲠáááşáˇáááşáˇ áĄáááşáá
áşááŻáᲠáááşáá˝ááşáážáŻáážááááşá ááŤááźáąáŹááşáˇá áĄá˛ááŤáᏠfunctional relationship áá
áşááŻááźá
áşáááşá áĄá˛ááŤáááŻá ááááş(ááş) áá
áşááŻááąáŤáşáážáŹááąáŹááş ááźááşáááŻááşáááşá ááááş(ááş) áá˝á˛ááźááşáˇááźááĄáąáŹááşá áᲠááźááşáˇááźá
ááŻáˇá áĄááźááşáˇááŻáśá¸áĄáááşá 6" 1" ááźá
áşáááşá ááťá˝ááşááąáŹáşáááŻáˇá á ááąáááąá
ááźáŽá¸á á ááąá á... |
We have Joelle, we have Nathan, we have Stewart, we have LJ, and then we have Tariq right there. So lets plot them. | LJ áážááááşá ááźáŽá¸ááąáŹáˇ ááŽáážáŹ Taraiq áážááááşá áááşá¸ááźáąáŹááşá¸ áá˝á˛ááźááşáˇááźááĄáąáŹááşá |
So you have Joelle, Joelle's height is 5-6, so 5-6 is right about there. Then you have Nathan. Let me do it in a different color. | Joelle áááŻááťážááş Joelle áá˛áˇáĄáááşá 5"6"á ááŽááŹá¸ááąáŹááşáážáŹ áážááááşá ááźáŽá¸ááąáŹáˇ Nathan áážááááşá áá
áşááźáŹá¸áĄááąáŹááşáá˛áˇ áá˝á˛ááŤáá
áąá |
Nathan's height is 4-11. We will plot to him right over there. Then you have Stewart. | Nathan áá˛áˇáĄáááşá 4" 11"á áá°áˇááŽááᯠááŽáážáŹ áááşá¸ááźáąáŹááşá¸áá˝á˛áááŻááşáááşá ááźáŽá¸ááąáŹáˇ Stewart áážááááşá |
Stewart's height is 5-11. He is pretty close to six feet. | Stewart áá˛áˇáĄáááşá 5"11"á áá°áááźáąáŹááşááąááŹá¸ ááąáŹáşááąáŹáşááŽá¸áááşá |
So Stewart's height-- I made him like six feet; let me make it a little lower-- is 5-11. Then you have LJ. | Stewart áá˛áˇ áĄáááşááᯠ6" ááŹá¸ááŹá¸áááŻááşáááşá áááşá¸áááşá¸ááąá¸ áĄáąáŹááşááťáááŻááşáááşá 5"11" ááźá
áşáĄáąáŹááşá ááźáŽá¸ááąáŹáˇ LJ áážááááşá |
LJ's height is 5-6. So you have two people with a height of 5-6, but that's OK, as long as for each person you only have one height. And then finally, Tariq is 6 foot 1. | LJ áá˛áˇáĄáááşá 5"6"á ááŽáážáŹ áá°áážá
áşááąáŹááşáá˛áˇáĄáááşá 5"6" áá°ááąáááşá ááŤááąáááşáˇ áá°áááąáŹááşáážáŹ áĄáááşáá
áşááŻáᲠááźá
áşááąáá áĄá˛á፠áááŤáááşá ááąáŹááşááŻáśá¸áážáŹááąáŹáˇ Tariq á 6"1"á áá°á ááŽáážáŹ áĄááźááşáˇááŻáśá¸áá˛á |
Tariq is right up here at 6 foot 1. So notice, for any one of the inputs into our function, we only have one value, so this is a functional relationship. Now, you might say OK, well, isn't everything a functional relationship? | Tariq á ááŽáĄáááşááŹá¸ 6"1" áážáŹ áážááááşá ááŽááąáŹáˇ áááááŹá¸ááźáŽá¸ááźááşáˇááŤá function áá˛áááşáˇáá˛áˇ áááşááááşá¸áááᯠááááşáá
áşááŻáᲠáá˝ááşáááşá ááŽááąáŹáˇ ááŤáᏠfunctional relationship áá
áşáᯠááźá
áşáááşá áĄáŹá¸ááŻáśá¸áᏠfunctional relationship áá˝áąáá˛áááŻááşáá°á¸ááŹá¸áááŻáˇ áááşááťáŹá¸ ááźáąáŹááťááşááźáąáŹáááşá áááŻááşáá°á¸á ááťá˝ááşááąáŹáş ááąá¸áááŻááşááźáŽá¸ áĄááźáąáĄááąáá
áşáá
áşááŻááŻááşáááŻááşááťážááşá ááŽáááŹá¸á áĄááŻ... |
Stewart, we would have two different values. If we were to graph this, we have Stewart here at 5-11, and then all of a sudden, we would also have Stewart at 5-3. Now, this doesn't make a lot of sense, so we would plot it right over here. | Stewart ááᯠáááşáˇáááŻááşááťážááşá áĄááźáąáážá
áşááŻáá˝ááşááąáááŻáˇáá˛á áĄá˛áˇááŤááᯠááŻáśáá˝á˛áááŻááşááťážááşá ááŽáážáŹ Stewart á 5"11" ááźá
áşááźáŽá¸á ááŻááşááááşá Stewart ááᯠ5"3" áážáŹáá˛áᲠáážááŚá¸áááşá ááŤá áĄáááášááŹááşááááşááážááá°á¸á ááŽááąáŹáˇ ááťá˝ááşááąáŹáşáááŻáˇ áááşá¸ááźáąáŹááşá¸ ááŽáážáŹ áá˝á˛áááşá ááŽááąáŹáˇ Stewart áĄáá˝ááşáĄááźáąáážá
áşáᯠááážáŹááźá
áşááźáŽá¸ ááŽááŹáááş áážááşáááşáá˛áˇ functional relationship áááŻá... |
In order for this to be a function, there can only be one value for this. You don't know in this situation when I add this, whether it's 5-3 or 5-11. | Function áá
áşááŻááźá
áşáááŻáˇáᏠáĄááźáąá áá
áşááŻáá˛áážáááááşá ááťá˝ááşááąáŹáş ááŤáááŻáááşáááşáˇáááŻááşáá˛áˇáĄááŤá ááŽáĄááąáĄááŹá¸áážáŹá 5"3"ááŹá¸á 5"11"ááŹá¸ áááŻáᏠáááşááťáŹá¸ áááážáŹáááŻááşáá°á¸á áĄááŻááąáŹáˇá ááŽáááŻáááŻááşááŤáá°á¸á áĄá˛á፠ááážááá°á¸á ááŤááźáąáŹááşáˇ |
Now, this wasn't the case, so that isn't there and so we know that the height of Stewart is 5-11 and this is a functional relationship. | Stewart áá˛áˇ áĄáááşáááş 5"11" áááŻáˇáááááşá ááŤá |
I think to some level, it might be confusing, because it's such a simple idea. Each of these values can only have one height associated with it. That's what makes it a function. | Functional relationship ááźá
áşáááşá áĄáááŻááşá¸áĄááŹáá
áşááŻáĄáá áážáŻááşáá˝áŹá¸áááŻááşáááşáááŻáˇ ááťá˝ááşááąáŹáşáááşáááşá ááŹáááŻáˇáá˛áááŻááąáŹáˇ áĄá˛ááŤáᏠáĄááąáŹáşáážááşá¸áá˛áˇ áááąáŹáááŹá¸ ááźá
áşááąáááŻáˇá ááŽáááşáááŻá¸áá
áşááŻá
áŽáááş áĄáááş áá
áşááŻáá˛áˇ áᏠáááşáá˝ááşáááŻááşáááşá áĄá˛ááŽáĄááťááşá function áá
áşááŻááźá
áşáĄáąáŹááş ááŻááşáááŻááşááŹááŤáá˛á áĄáááşáá
áşááŻáááşáááŻááźáŽá¸ áááşáá˝ááşáá˛áˇááťážááş áĄá˛ááŤáᏠfunction áá
áşáᯠáááŻááşááą... |
Round 24,259 to the nearest hundred. You're going to find that doing these problems are pretty straightforward, but what I want to do is just think about what it means to round to the nearest hundred. | .. áá,áá
á áááŻáĄááŽá¸á
áášááśáŻáŻá¸ ááŹáááášá¸áá°ááŤá ááŽááŻá
á§áŹáąááźááᯠááŻáášááᏠááźáášááŤáááš ááŤáąááá˛áˇ áá˝áźáášáąááŹášááŻáášááşáášááŹááąááŹáˇ áĄááŽá¸á
áášááśáŻá¸ááŹáááášá¸áá°ááášááŹáá˛áááŻááŹááᯠá
áĽášá¸á
áŹá¸áąá
ááşáášááŤáááš áĄáᯠááśááŤáášááşáĽášá¸ááźá˛áá˝áŹá፠ááŽáá˝áŹááśááŤáášááşáĽášá¸ááźá˛áááš áżááŽá¸áąááŹáˇ ááśááŤáášááşáĽášá¸áá˝áŹááŹáááášá¸áąááźáááŻáŻ áá˝áášááŤáááš áá˝áźáášáąááŹášáááŻááá˝áŹ áá,ááááá˝ááááš áżááŽá¸áąááŹáˇ áá,ááááááŻááźáŹá¸áááš áżááŽá¸áááš áá... |
The main mast of a fishing boat is supported by a sturdy rope that extends from the top of the mast to the deck. If the mast is 20 feet tall and the rope attaches to the deck 15 feet away from the base of the mast, how long is the rope? So let's draw ourselves a boat and make sure we understand what the deck and the ma... | ááŤá¸ááťážáŹá¸áážáąáá˛áˇ áá˝ááşáááŻááşáááᯠáááŻááşááŹáá˛áˇ ááźááŻá¸áá˛áˇááąáŹááşááśáˇááťááşááąá¸ááŹá¸ááŤáááşá áĄá˛ááŽááźááŻá¸á áá˝ááşáááŻááşááááşáááą ááŻááşá¸áááşáážáŹ ááťááşááŹá¸ááŤáááş áá˝ááşáááŻááşá áááşá(áá)áážááşááźáŽá¸ ááťááşááŹá¸áá˛áˇááźááŻá¸á áá˝ááşáááŻááşáĄáąáŹááşááźáąáááą (áá
)ááą áĄáá˝áŹáážáŹáážááááş ááźááŻá¸áá˛áˇáĄáážááşááᯠáážáŹááŤá ááąááąááťáŹááťáŹááŹá¸áááşáĄáąáŹááş áážáąááŻáśááᯠáá˝á˛ááźááşáˇááĄáąáŹááş ááŻááşá¸áááşááᏠáá˝ááşáááŹáááŻááŹá፠ááźááşáĄáąáŹááş... |
And then the mast is the thing that holds up the sail. So let me draw ourselves a mast. And they say the mast is 20 feet tall. | áá˝ááşáááŻááşáááŻáᏠáá˝ááşáááŻááťááşáá˛áˇ áááŻááşááŤáᲠáá˛ááŽááąáŹáˇ áá˝ááşáááŻááşááᯠáá˝á˛áááŻááşááźáŽ áááŻááŹá¸ááŹá áá˝ááşáááŻááşá ááą(áá)áážááşáááş ááŽááąáŹáˇ ááŽáĄáážááşá ááą(áá)ááąáŤáˇá ááŤáááąáŹáˇ áá˝ááşááąáŹáˇááťááşááŹá¸ááŹááŤá áážááşá¸áážááşá¸áááşá¸áááşá¸ ááźááşááĄáąáŹááş áááŻááşáĄááąáá˛áˇáᲠáá˝á˛áááŻááşááźáŽá áá˝ááşááŻáśááᯠáááşáˇááźááşááťááşáááşáᲠáááŤáááşá ááźáŽá¸ááąáŹáˇ ááźááŻá¸áááŻááşá¸áááşááąáŤáşáážáŹ áááŻááşáĄáąáŹááşááźáąáááą (áá
)ááąáĄáá˝áŹááž... |
And all that tells us is it the sum of the squares of the shorter sides of the triangle are going to be equal to the square of the longer side. And that longer side is call the hypotenuse. | ááŤáááŹáá˛áááŻááąáŹáˇ áááŻáá˛áˇáĄááŹá¸áážá
áşááŻá ááśááąáŹááşááŹá¸áá˛áˇ á
ááŻáááşá¸áá˛áˇ á§ááááŹááťáŹá¸ ááąáŤááşá¸áááşáᏠáážááşáá˛áˇáĄááŹá¸á ááśááąáŹááşááŹá¸áá˛áˇ á
ááŻáááşá¸áá˛áˇ á§ááááŹáá˛áˇ áá°ááŽááąááŹááŤáᲠááŽáážááşáá˛áˇáĄááŹá¸ááᯠááąáŹááşáˇáážááşááśáĄááŹá¸áááŻáˇááąáŤáşáááş |
And in all cases, the hypotenuse is the side opposite the 90 degree angle. It is always going to be the longest side of our right triangle. So we need to figure out the hypotenuse here. | ááźáŻáśááźááşáˇáááŻááşáááş ááąáŹááşáˇáážááşááśáĄááŹá¸áááŻáᏠááËáá˛áˇ ááťááşáážáŹááťááşá¸áááŻááşáážáŹ áážááá˛áˇáĄááŹá¸ááŤáᲠááŤá (ááąáŹááşáˇáážááşááśáĄááŹá¸á) áĄáážááşááŻáśá¸áĄááŹá¸ááŤáᲠááąáŹááşáˇáážááşááźáááśáá
áşááŻáážáŹ ááŤááźáąáŹááşáˇááąáŹááşáˇáážááşááśáĄááŹá¸ááᯠááŽáážáŹáá˝á˛áááş áááŻáá˛áˇáĄááŹá¸áážá
áşááŻáá˛áˇ áĄáážááşá (áááŹ)áááŻáˇ ááááźáŽá¸ááŹá¸ááŤá (áá
)áážá
áşáááşáááŻáááş ááŹáᲠáá˝ááşáááŻáˇáááŤáááşá ááŽááąáŹáˇ áĄáááŻááŻáśá¸áĄááŹá¸ áá
áşááŻáááźáŽááąáŤáˇá áážá
áşáá... |
So 15 squared plus 20 squared is going to be equal to r squared. | (áá
)áážá
áşáááşáá˛áˇ (áá)áážá
áşáááşááąáŤááşá¸áááş |
And what's 15 squared? It's 225. 20 squared is 400. | "r" áá˛áˇáážá
áşáááşáááŤáááşá (áá
) áážá
áşáááşá (ááá
) áááŤáááş (áá)áážá
áşáááşá (ááá)á፠ááŤá "r"áá˛áˇ áážá
áşáááşáá˛áˇ ááŽááťážááŤáááşá (ááá
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) áááŤáááşá (ááá
)á "r" áá˛áˇáážá
áşáááşáá˛áˇ ááŽááťážááŤáááşá ááźáŽá¸ááąáŹáˇ ááŽááŽááťážááźááşá¸áá˛áˇ áážá
áşáááşááŻáśá¸ááᯠ(áážá
áşáááşááááşá¸áá˛áˇ)ááááşá¸áááşá¸ ááźááşáážáŹááŤáááş áááŹáááŻáˇá áĄáá˝áŹáĄááąá¸áááŻáážáŹááąáᏠááźá
áşáá˛áˇáĄáá˝ááş áĄááąáŤááşá¸ááááşá¸áááşá¸áááŻá... |
We're asked to subtract, simplify the answer and write as a mixed number. So we have two mixed numbers here, and like when you're adding mixed numbers, you can do it two ways. You can either turn both of these into improper fractions and then subtract, or you can subtract the whole number part and then the fraction par... | ááźáşáášáąááŹášáááŻáááᯠááŻáášáááŻáášá¸áťááŽá¸áááŹáá˛áˇáĄáąáťáááᯠáááášá¸áąááŹááśáŻá
áśáąáá¸áááŻáášá¸ááŹá¸ááŤáááš ááŤáááŻááźáşáášáąááŹášáááŻááá˝áŹáááášá¸áąááŹáá˝á
ášááŻáá˝ááááš áááášá¸áąááŹáąááźáááŻááášá¸áá˝á
ášááášá¸áá˛ááąááŤáášá¸áááŻáášáááš ááźáşáášáąááŹášáááŻáááŤáąááźáááŻáááášá¸áąááźáááŻáąáťááŹáášá¸áťááŽá¸áąááŹáˇ ááŻáášáááŻáááááš (áááŻá) áááášá¸áťááášáˇáąááźáááŻááŻáášáťááŽá¸áá˝ áĄáááŻáášá¸áááášá¸áááŻááŻáášáá˛ááááš ááŤáááŻááşáźáášáąááŹášáááŻááááááŹá¸ááá˝áŹá á
áá˛á á
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So we get 5 plus 5/8, and then we distribute the negative sign, minus 2 minus 1/5. And now we can rearrange it. Let me do it in orange... as 5 minus 2, that's the whole number parts, and then you have plus 5/8 minus 1/5. | -á-á/á
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A non-profit organization devoted to "ideas worth spreading" | "ááťáśáˇáážáśáˇáááŻááşááąáŹ á
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A message from TED Curator Chris Anderson | TED ááŹáááşááś Chris Anderson ááŽá áĄáážáŹá
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Now, today you are part of a truly remarkable global phenomenon. Around the world, thousands of people have been gathering in meetings to experience the power of ideas. A surprising thing about today's meeting is that we here at TED have had almost nothing to do with it. | áĄáᯠáááşáᏠááááˇáşááᯠáá°á¸ááźáŹá¸áá˛áˇ ááášááŹáˇááźá
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நமŕŽŕŻŕŽŕŻŕŽŕŻ ŕŽŕŻŕŽŕŻŕŽŕŻŕŽŕŽŞŕŻŕŽŞŕŽŕŻŕŽ ŕŽŕŽŽŕŽŠŕŻŕŽŞŕŽžŕŽŕŻŕŽŕŻŕޞ தனி மதிபŕŻŕŽŞŕŻŕŽŕŻ ŕŽŕŽŁŕŻŕŽŕŻŕŽŞŕŽżŕŽŕŽżŕŽŕŻŕŽŕŽŞŕŻŕŽŞŕŻŕŽąŕŻŕŽŽŕŻ. மŕŻŕŽŁŕŻ ŕŽŕŽŕŻŕŽ¸ŕŻ ŕŽŕŽ´ŕŽżŕŽ¤ŕŻŕŽ¤ŕŽ˛ŕŻ 9 ŕŽŕŽŠŕŻ ŕŽŽŕŻŕŽ´ŕŻ ŕŽŽŕŽ¤ŕŽżŕŽŞŕŻŕŽŞŕŻ ŕŽŞŕŻŕŽŕŻŕŽŕŽżŕŽŻŕŽ¤ŕŻŕޤŕŻŕŽŕŻŕŽŕŻŕŽŕŻ ŕŽŕŽŽŕŽŽŕŻ. ŕŽŕޤŕŻŕŽŕŻŕŽŕŻ ŕŽŕŽŁŕŻ ŕŽŕŻŕŽŕŻŕŽŕŽżŕŽŠŕŻ ŕŽľŕŽ´ŕŽżŕŽŻŕŽžŕŽ¤ŕŻ ŕŽ¤ŕŻŕްŕŻŕŽľŕŻ ŕŽŕŽžŕŽŁŕŽ˛ŕŽžŕŽŽŕŻ. மŕŻŕŽ´ŕŻŕŽŽŕŽ¤ŕŽżŕŽŞŕŻŕŽŞŕŻŕŽŕŻ ŕŽŕŽŽŕŽŠŕŻŕŽŞŕŽžŕŽŕŻŕŽŕŻ ŕŽŽŕŽąŕŻŕŽŞŕŽŕŽżŕŽŻŕŻŕŽŽŕŻ ŕŽŕŽ´ŕŻŕŽ¤ŕŽżŕŽŕŻŕŽŕŽ˛ŕŽžŕŽŽŕŻ. மŕŻŕŽŠŕŻŕŽąŕŻ ŕŽŕŽŕŻŕŽ¸ŕŻ ŕŽŕŽ´ŕŽżŕŽ¤ŕŻŕŽ¤ŕŽ˛ŕŻ 9 ŕŽŕŽŠŕŻ ŕŽŽŕŻŕŽ´ŕŻ ŕŽŽŕŽ¤ŕŽżŕŽŞŕŻŕŽŞŕŻ ŕŽŞŕŻŕŽŕŻŕŽŕŽżŕŽŻŕŽ¤ŕŻŕޤŕŻŕŽŕŻŕŽŕŻŕŽŕŻ ŕŽŕŽŽŕŽŽŕŻ. ŕŽŕŽ¤ŕŻ ŕŽ¤ŕŽžŕŽŠŕŻ ŕŽ¨ŕŽŽŕŽŕŻŕŽŕŻŕŽŕŻ ŕŽŕŻŕŽŕŻŕޤŕŻŕŽ¤ŕŽż... | ááśááŤáášááşáĽášá¸áąáááá˝áŹáá˝ááá˛áˇ H áĄááźáášáťáá
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Simply 4 ('a' squared) b and this whole quantity is being raised to the third power Now here we'll just use the property if we have the product of things, let's say I have a times b and I'm raising that to some power n this is just going to be equal to a to the n times b to the n. | ááŤáááŻááźáąáážááşá¸ááŤá (4a áážá
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Help your visitors find the information they need easier and faster with Google Custom Search. | Google custom search áá˛ááąáťááá˝áášá¸áá°ááŽáááŻáášááŤá |
Graph a line that has a slope that is negative and greater than the slope of the blue line. So let's think for a second about what slope means. So if you use the word slope in your everyday life, you're really talking about how inclined something is, | ááťááşá¸áá
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Find the greatest common factor of these monomials. Now the greatest common factor of anything is the largest factor that's divisible into both -- if we're just talking about pure numbers: into both numbers, or in this case into both monomials. Now we have to be a little bit careful when we talk about 'greatest' in the... | ááŽáááášá¸ á ááśáŻá¸ááŤáááášá¸áąááźáá˛á áĄážááŽá¸ááśáŻá¸áááźá˛áááášá¸áááŻáá˝áŹááááš áĄážááŽá¸ááśáŻá¸áááźá˛áááášá¸áááŻááŹá áá˝á
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It will be equal to this five, times we only have one c in common, times - we have two d's in common. So this is equal to 5 times c times d-squared. So 5 c d-squared we can view as the greatest -- | It will be equal to áĄá˛áˇááŤá this five, times áᎠá
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I'll put that in quotes, you know, depending on whether c is negative or positive - and d is greater than or less than zero. But this is the "greatest" common factor of these two monomials. It's devisable into both of them and it uses the most factors possible. | -ááŤáááŻáĄážááŽá¸ááśáŻá¸áááŻááá°áááŻááááŤáááš áťááŽá¸áąááŹáˇáááŻá¸ááŹá¸ááşáášáááˇášááŤáááš c áá˛ááĄáąááŤáášá¸ (áááŻá) áĄááŻáášááášáááŻá¸áąáá áá°ááášáťááŽá¸áąááŹáˇ áąááŹááš d á á ááášážááŽá¸ááŹááášááŹáĄáąáá .áá°ááášáťááŽá¸áąááŹáˇáááŻáááášáˇááŤáááš ááŤáá˛áˇááŤá áááŻáááŻááŽááášáá˝á
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Contagious is a good word. Even in the times of H1N1, I like the word. Laughter is contagious. | áá°á¸á
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So, I'd like to show you a little glimpse of what common practice looks like at Riverside. A little background: when my grade five was learning about child rights, they were made to roll incense sticks, agarbattis, for eight hours to experience what it means to be a child laborer. What you will see is their journey, an... | Riverside ááťáąáŹááşá¸áá˛áˇ ááŻáśáážááşááŻááşááąááźááŹáá˝áąá áááşáááŻáá˛áááŻááŹáááŻááąáŤáˇ ááąáŹááşááśááŹááşáááşá¸áááąáŹáˇ ááťá˝ááşááá˛áˇ ááŤá¸áááşá¸ááťáąáŹááşá¸ááŹá¸áá˝áą áááąá¸áá°áááşáĄáá˝ááˇáşáĄááąá¸áĄááźáąáŹááşá¸ ááąáˇááŹááźááŻááşá¸á áá°áááŻáˇáá˝áąááᯠáĄáá˝ážáąá¸áááŻááşáá˝áą ááááşáááŻááşá¸áááş áĄááŤáááşáᎠáĄáá˝ážáąá¸áááŻááşáá˝áąááąáŤáˇá á-ááŹááŽááŻáśá¸ááŻáśá¸ ááááşáááŻááşá¸áᏠáááąá¸áĄááŻááşáááŹá¸áááŻáᏠááŹáááŻáááŻáááŻáá˛áááŻáᏠáááŻááşáá˝áąáˇááźáśáŻáá°á¸áĄáąáŹááşá፠áĄ... |
So, when Ragav experienced that he went from "teacher told me," to "I am doing it." And that's the "I Can" mindshift. And it is a process that can be energized and nurtured. But we had parents who said, | "á፠ááŤááᯠááŻááşááąááźáŽ" áááŻááŹááᯠááąáŹááşáá˝áŹá¸áááşá áĄá˛ááŤáᏠ"ááŤááŻááşáááŻááşáááş" áááŻáá˛áˇ á
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"Okay, making our children good human beings is all very well, but what about math and science and English? Show us the grades." And we did. | "ááťá˝ááşááąáŹáşáááŻáˇáááąá¸áá˝áąááᯠáá°ááąáŹááşá¸áá°ááąáŹáşáá˝áąááźá
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áŹáááŻáˇááźááąáŹáˇ áááşáááŻáᲠááťá˝ááşááąáŹáşáááŻáˇááᯠáĄáááˇáşáá˝áą ááźááŤ" áá˛áˇ ááťá˝ááşááááŻáˇ ááźááąá¸áá˛áˇááŤáááşá áĄááťááşáĄáááşáá˝áąá áááŻááşááŹááźááˇáşá
áŻáśááŤáááş áááąá¸áá˝áąááᯠááŻááşáá˝ááˇáşááąá¸áááŻááşáááş áá°áááŻáˇ ááąáŹááşá¸áĄáąáŹááşááŻááşááŻáśáááşáááá°á¸ áá°áááŻ... |
Riverside children were outperforming the top 10 schools in India in math, English and science. So, it worked. It was now time to take it outside Riverside. | Riverside ááťáąáŹááşá¸á áááąá¸áá˝áąáᏠáĄááášáááá ááááşáááşá¸á
áŹáááşá¸áááş ááťáąáŹááşá¸ áá-ááťáąáŹááşá¸áááşááąáŹááş áááťááşášáŹá áĄááşášáááááşá
Ꮰáá˛áˇ áááášááśááŹááŹáá˝áąáážáŹ ááŹááąááŤáááş áĄá˛ááŽááąáŹáˇ áĄááŻááşááźá
áşááŤáááşá áĄáᯠRiverside ááťáąáŹááşá¸áĄááźááşááᯠáá˝ááşááźááˇáşáááŻáˇ áĄááťáááşááąáŹááşááŤááźáŽ áááá-ááŻáážá
áş ááźááŻááşá áá
-áááşá áá˝ááşáááşááąá¸ááąáˇáážáŹ |
So, on August 15th, Independence Day, 2007, the children of Riverside set out to infect Ahmedabad. Now it was not about Riverside school. It was about all children. | Riverside ááťáąáŹááşá¸á áááąá¸áá˝áąáᏠáĄáŹááŽááŤáááşááźááŻáˇááᯠáá°á¸á
ááşá
áąáááŻáˇ áá˝ááşááźááŤáááş áĄáᯠááŤáᏠRiverside ááťáąáŹááşá¸áĄááźáąáŹááşá¸ áááŻááşááąáŹáˇááŤáá°á¸ ááŤáᏠáááąá¸áá˝áą áĄáŹá¸ááŻáśá¸áĄááźáąáŹááşá¸ááŤá ááťá˝ááşááááŻáˇáá˝áą áĄáážááşáááşá¸áááşá¸áá˛áˇ ááŻááşáá˛áˇááźááŤáááş ááťá˝ááşááááŻáˇáá˝áą á
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Since 2007 every other month the city closes down the busiest streets for traffic and converts it into a playground for children and childhood. Here was a city telling its child, "You can." A glimpse of infection in Ahmedabad. | áááá-ááŻáážá
áşááááşá¸á áá
áşáááźáŹá¸á
ᎠáĄá˛ááŽááźááŻáˇáᏠááŹááşáá˝áŹá¸ááŹáážáŻ áĄáážáŻááşáá˝áąá¸ááŻáśá¸ áááşá¸áá˝áąááᯠááááşááąá¸ááźáŽá¸ááąáŹáˇ áĄá˛ááŽááąááŹáá˝áąááᯠáááąá¸áá°áááşáá˝áąáĄáá˝ááş áá
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áşááźááŻáˇá፠áĄáŹááŽááŤáááşááźááŻáˇ á áá°á¸á
ááşáážáŻááᯠáááᏠááźááˇáşáážáŻááźááşá¸á፠(ááŽááŽáááŻ) ááŽáážáŹ ááŹááşáĄáážáŻá... |
KBS: And because of that, Ahmedabad is known as India's first child-friendly city. | ááŽááá
ášá
ááźáąáŹááˇáş áĄáŹááŽááŤáááşááźááŻáˇááᯠáĄááášááááá˛áˇ áááąá¸ááťáŹá¸ áĄááťá˝ááşá¸ááááşááźá
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áąáá˛áˇ áááááŻáśá¸ááąáŹááźááŻáˇ áĄááźá
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áśááᯠáááŹááŤááźáŽá ááá Riverside ááťáąáŹááşá¸á áááąá¸ ááá ááźáŽá¸ááąáŹáˇ áĄáŹááŽááŤáááşááźááŻáˇá áááąá¸ á-ááąáŹááşá¸á ááźáŽá¸ááąáŹáˇ áááŻá¸ááŹááąááąá¸áááş áĄáᯠáĄááášáááááᯠáá°á¸á
ááşáĄáąáŹááşááŻááşáááŻáˇ áĄááťáááşáááşááŤááźáŽ ááźááŻááşá áá
-áááşááąáážáŹ áááá-... |
Basically again reaffirming that when adults believe in children and say, "You can," then they will. Infection in India. This is in Rajasthan, a rural village. | "áááşá¸áááŻáˇááŻááşáááŻááşáááş" áááŻáˇááťáŹá¸ ááźáąáŹáááŻááşáááş áááąá¸áá˝áąá ááááş ááŻááşááźááááˇáşáááşáááŻáᏠáááşááźáŽá¸ ááąááťáŹáĄáąáŹááşááźáąáŹááŤáááş ááŤá áĄááášááááá
áşááźááşááŻáśá¸ áá°á¸á
ááşááźááşá¸á፠ááŤá ááŹááťááşá
áşáááşááźááşáááşá ááťáąá¸áá˝áŹáá
áşáá˝áŹáážáŹá፠áááąá¸ Ḡááťá˝ááşááąáŹáşáááŻáˇ ááááá˝áąá á
áŹááááşááźááŤáá°á¸á ááťá˝ááşááąáŹáşáááŻáˇá áá°áááŻááᯠááąá¸áááşáááşáááşáĄáąáŹááş áááşááąá¸ááťááşááŤáááş |
First time, a rally and a street play in a rural school -- unheard of -- to tell their parents why literacy is important. | KBS ááááşá¸ Ḡááťáąá¸áááşááťáąáŹááşá¸áá
áşááťáąáŹááşá¸áážáŹ áá°á
áŻáá°ááąá¸áá˛áˇ áááşá¸ááąáŤáşáážáŹ áá
áŹá¸ááźááŹáᏠá፠áááááŻáśá¸ááŤáᲠá
áŹáááşááźáąáŹááşááźááşá¸áᏠáááşááąáŹááşáĄááąá¸ááźáŽá¸áááşáááŻáᏠáá°áááŻáˇááááá˝áąááᯠááźáąáŹááźááŹááťááŻá¸ áááźáŹá¸áá°á¸ááąá¸ááŤáá°á¸ |
Look at what their parents says. Man: This program is wonderful. | áá°áááŻáˇááááá˝áą ááŹááźáąáŹááᲠááźááˇáşááźááŤáŚá¸ áĄááťááŻá¸ááŹá¸ ḠáᎠáĄá
áŽáĄááśá áĄáśáˇááźá
ááŹáá˛ááťáŹ ááťá˝ááşááąáŹáşáááŻáˇáááąá¸áá˝áąá ááąá¸áááşáááşáááşáĄáąáŹááş ááťá˝ááşááąáŹáşáááŻáˇááᯠáááşááąá¸áááşáááŻáᏠáĄáááşá¸ááąáŹááşá¸áááşáááŻáˇ ááśá
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áşáááşááąá¸ááŻááşááŹááᯠááťá˝ááşá áĄáááşá¸ááťáąáŹáşáááş áĄááŹááŤááşáážáŹ ááťá˝ááşáááťáąáŹááşá¸ááŹá¸áá˝áąáá˛áˇ á
á˝ááşá¸ááąáŹááşáááşáá˝áąááᯠááťá˝ááşá áááşááąáŹáˇááž ááśáá ááźá
áşáážáŹ... |
KBS: An inner city school in Hyderabad. Girl: | KBS ááááşá¸ ḠáááŻááşáááŹáááşá ááźááŻáˇáá˝ááşá¸ ááťáąáŹááşá¸áá
áşááťáąáŹááşá¸áážáŹá፠ááááşá¸áááąá¸ Ḡá
ááá ááŽáĄáááşá áĄáááşááśááŤááş á
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á
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70 years ago, it took one man to infect an entire nation with the power of "We can." So, today who is it going to take to spread the infection from 100,000 children to the 200 million children in India? Last I heard, the preamble still said, "We, the people of India," right? | "ááŤáááŻáˇááŻááşáááŻááşáááş" áááŻáá˛áˇ á
á˝ááşá¸áĄáŹá¸áá˛áˇá፠áᲠááŽáááąáˇáážáŹ áááşáá°áááťáŹá¸ áááąá¸ á-ááááşá¸áááą áĄááášááááážáŹáážááá˛áˇ áááąá¸ ááŽááŽááś-ááá ááᯠáá°á¸á
ááşááźááşá¸ááᯠááźááˇáşááąá¸áááŻáˇ ááŹáááşáá°ááŤááᲠááąáŹááşááŻáśá¸ ááťá˝ááşá ááźáŹá¸áááááşá áĄááźáąááśáĽáááąáá˛áˇ ááááŤááşá¸áážáŹ ááźáąáŹááŹá¸ááŤááąá¸áááşá "áĄááášááááááźááşáá°áá°ááŻá ááťá˝ááŻáşááşáááŻáˇáááş" áá˛áˇá ááŻááşáá˛áˇááŹá¸ ááŤáááŻáááş ááťá˝ááşááááŻáˇááž ááŽáá°á¸á
ááşááźááşá¸á... |
[Thrun] So congratulations. You learned a lot about Bayes networks. | ááŻáášáá°ááŤááášá ááášááşáŹá¸ Bayes networks áá˛á ááášááášáżááŽá¸ áąááŹášáąááŹášáąáḠáąááˇááŹáżááŽá¸ááźáŹá¸ááŤáżáᎠ|
You learned about the graph structure of Bayes networks, you understood how this is a compact representation, you learned about conditional independence, and we talked a little bit about application of Bayes network to interesting reasoning problems. | Bayes networks áá˛áá˝áŹ áá˝ááá˛áˇ graph structure áááŻááášá¸ áąááˇááŹáżááŽá¸ááŤáżáᎠáĄá˛ááŽááŹááᯠááášááᯠáĄáááŻááşáśáłá¸ áąááŹášáťáááşáášáá˛á áąáá¸áťááááŻáášááášáááŻááŹááášá¸ ááŹá¸ááášááźáŹá¸ááŤáżáᎠáĄáąáťááĄáąááĄáąáááá˝áŹ áá°ááášáá˛áˇ áá˝áŽááášáááááŻááášá¸ áá˝áźáášáąááŹášáááŻá áąáťááŹáá˛áˇ áżááŽá¸ááŤáżáᎠ|
But by all means this was a mostly theoretical unit of this class, and in future classes we will talk more about applications. | Bayes network ááᯠá
ááášááášá
áŹá¸á
ááŹáąááŹáášá¸áá˛áˇ ááášáťááášááášá¸ ááŻá
áŹáŚáąááźáá˝áŹ ááášáąááźááĄááśáŻá¸ááşááśáŻáááŻááášá¸ áĄááášá¸áááš áąáťááŹáá˛áˇážáááŤáááš ááŤáąááá˛áˇ ááášáááŻááášá¸áá˛ááᲠáťáá
ášáťáá
áš ááŽáĄááášá¸áá˝áŹáąááŹáˇ ááŽáĄááŻáᎠáááŻáášá¸ áĄááᲠáąááźá¸áąááźá¸áááŻáášáá˛áˇááŤáááš áąááŹáášááŹáá˛áˇ áĄááášá¸áąááźáá˝áŹáąááŹáˇ áááŻáżááŽá¸ ááášáąááźááĄááśáŻá¸ááşááśáŻáąááź áąáťááŹáááŻááá˝áááŤáááš |
The instrument of Bayes networks is really essential to a number of problems. It really characterizes the sparse dependence that exists in many readable problems like in robotics and computer vision and filtering and diagnostics and so on. | Bayes networks ááᯠáĄááśáŻá¸ááşáťááášá¸áᏠááŻá
áŹáŚáĄáąááŹášááşáŹá¸ááşáŹá¸áá˝áŹ áĄáááááşááŤáááš á
áášááŻáášááášá¸áááŹá ááźáášááşá´ááŹá áĄáťááášáĄáŹááśáŻá áĄááşáášáĄááášááşáŹá¸ á
á
ášááŻáášáťááášá¸áá˛á áąááŹááŤáá˝áŹáąááźáąáá¸áąááźááᯠáťááááŹáąááźáá˝áŹáá˝ááá˛áˇ áĄááşáášáĄáááš áĄáąáťááĄáąááąááź áĄááşáášá¸ááşáášá¸ áťááášáááşá˛ áá˝áŽáááŻáąááá á Bayes networks áá˛ááááąááááŤáᲠááášááşáŹá¸áááŻá ááŽáĄááášá¸ááᯠá
ááášááŤááášá
áŹá¸ážáááášáááŻá áąáá˝áşáŹášááášáˇááŤáááš |
I really hope you enjoyed this class, and I really hope you understood in depth how Bayes networks work. | Bayes networks ááášááᯠáĄááŻáášááŻáášááášáááŻáᏠáąááŹáášá¸áąááŹáášá¸ááášá¸ááášááášáááŻá ááášá¸ áąáá˝áşáŹášááášáˇááŤáááš |
Determine the number of solutions to the quadratic equation, x squared plus 14x plus 49 is equal to 0. There's a bunch of ways we could do it. | ážQuadratic Formular 3 áĄáąáŹááşá፠Quadratic Equation áá˛áˇ áĄááźáąáá˝áąáá˛áˇ áĄááąáĄáá˝ááş áááŻáážáŹááŤá x² + 14 x +49 = 0 ááŽáĄááźáąáááŻáážáŹáááŻáˇ ááťá˝ááşááąáŹáşáááŻáˇáážáŹ áááşá¸áááşá¸ááťáŹá¸á
á˝áŹáážáááŤáááşá ááťá˝ááşááąáŹáşáááŻáˇ ááŤáááŻááá˝á˛ááááşá¸áá˝á˛ááźáŽá¸ x áá˛áˇáááşáááŻá¸áá˝áąáááŻáážáŹáááŻááşáááş ááźáŽá¸áááş Equation ááᯠááźááşáˇáááşá¸áááş áĄááźáąáá˝áąááᯠáážáŹááźáŽá¸á áĄááąáĄáá˝ááşááᯠáá˝ááşáááŻááşááŻáśááŤáá˛á ááŤáááąáŹáˇ áĄá... |
So the quadratic formula tells us that if we have an equation of the form ax squared plus bx plus c is equal to 0, that the solutions are going to be-- or the solution if it exists is going to be-- negative b plus or minus the square root of b squared minus 4ac. | Quadratic Formula áááŻááŹá ááťá˝ááşááąáŹáşáááŻáˇáá˛áˇ Equation á ax2 + bx + c = 0 ááźá
áşáá˛áˇáááş áá°áá˛áˇ áĄááźáąáá˝áą (áááŻáˇáááŻááş) áá°áˇáážáŹ áĄááźáąáážááá˛áˇáááş... ááŽáĄááźáąáá˝áąá ááŽááťážááźááşá¸ |
All of that over 2a. Now the reason why this can be 2 solutions is that we have a plus or minus here. If this b squared minus 4ac is a positive number-- so let's think about this a little bit. | -b Âą â(b² - 4ac) ááŤáá˝áą áĄáŹá¸ááŻáśá¸áĄáááŻááşá¸ 2aááźá
áşáááşá ááŽáážáŹ ááŹááźáąáŹááşáˇ áĄááźáąáážá
áşááŻáážááááŻááşááᲠáááŻááąáŹáˇ ááťá˝ááşááąáŹáşáááŻáˇááŽáážáŹ ( Âą ) áážááááŻáˇááŤá áĄáááşáááŻáˇ (b² - 4ac) á áĄááąáŤááşá¸ááááşá¸ááźá
áşáá˛áˇáááş ááŤááᯠááŽáááŻááąá¸ á
ááşá¸á
áŹá¸ááźááşáˇááĄáąáŹááşá áĄáááşáááŻáˇáᏠ(b² - 4ac) á ááŻááááşááźáŽá¸áá˛áˇáááş ááŹááźá
áşááá˛? ááŻááşááźáŽ ááŤá áĄááąáŤááşá¸ááááşá¸ááźá
áşáááŻáˇ ááŤááážá
áşáááşááááşá¸áááşá¸áá
áşááŻ... |
So this is going to lead to two solutions. Now what happens if b squared minus 4ac is equal to 0? If this expression under the radical is equal to 0, you're just going to have the square root of 0. | ----- ááąáŹááşá¸ááźáŽá áĄáááşáááŻáˇ (b² -4ac)á ááŻááá˛áˇááŽááťážáá˛áˇáááş ááŹááźá
áşááá˛.. áĄáááşá áᎠRadical áĄáąáŹááşá ááááşá¸áááşá¸á ááŻááá˛áˇááŽááťážáá˛áˇáááş áááşááťáŹá¸á ááŻááá˛áˇ áážá
áşáááşááááşá¸áááşá¸ááááşááąáŤáˇá ááŽááąáŹáˇ ááŤá (-b Âą 0) ááźá
áşáááşá áááşááťáŹá¸á ááŻááááŻáᲠááąáŤááşá¸ááąáŤááşá¸á áááŻáˇáááŻááşá ááŻááááŻáá˛áážáŻááşáážáŻááş áááşááťáŹá¸á áá°ááŽáá˛áˇ áĄááźáąáá˛ááááşááąá ááŽáááŻáĄááźáąáĄááąáážáŹ áᎠEquation áá˛áˇ ááááş... |
Well if b squared minus 4ac is less than 0, this is going to be a negative number right here and you're going to have to take the square root of a negative number. And we know, from dealing with real numbers, you can't take the square root. There is no real number squared that becomes a negative number. | áĄáááşáááŻáˇ (b² -4ac) á ááŻááááşáááşá¸áááş ááŤá áĄáážáŻááşááááşá¸áááşáááŻá¸ááźá
áşáááş áááşááťáŹá¸á áĄáážáŻááşááááşá¸áá
áşááŻááᯠáážá
áşáááşááááşá¸áááşá¸áá°(ááŻááş) áááááşáˇáááş ááťá˝ááşááąáŹáşáááŻáˇ ááááŹá¸ááŹá real numbers (ááááşá¸á
á
áş) áá˝áąááᯠááźáąáážááşá¸áá˛áˇáĄááŤáážáŹ áááşááťáŹá¸ááŤááᯠ(áĄáážáŻááşááááşá¸) áážá
áşáááşááááşá¸áááşá¸ááŻááşáááŻáˇ ááááŤáá°á¸á real number áá˛áˇ áážá
áşáááşááááşá¸á áĄáážáŻááşááááşá¸áááşáááŻá¸ áááááŻááşááŤ... |
So in this situation there is no solutions, or no real-- when I say real I literally mean a real number-- no real solution. So let's think about it in the context of this equation right here. And just in case you're curious if whether this expression right here, b squared minus 4ac, has a name, it does. | ---- ááŽáážáŹ áᎠEquation áá˛áˇáááşá
ááşáá˛áˇ áĄááťááşáĄáááşáá˝áąáááŻá
ááşá¸á
áŹá¸ ááźááşáˇááźááĄáąáŹááşá áááşááťáŹá¸á ááŽááááşá¸áááşá¸(b² -4ac) áážáŹ áĄáááş ááŹáááşáá
áşááŻáážááááŹá¸áááŻáˇ ááááťááşáá˛áˇáááşáážáááŤáááşáááşááťáŹá¸ ááŤááᯠDiscriminant áááŻáˇ ááąáŤáşááŤáááşá |
It's called the discriminant. This is the discriminant. That's that part of the quadratic equation. | ---- ááŤá Discriminant ááŤá áᎠQuadratic Equation áá˛áˇ áĄá
áááşáĄáááŻááşá¸áá
áşááŻááŤá ááŽááŹá ááťá˝ááşááąáŹáşáááŻáˇáážáŹ áĄááźáąáááşáááŻá¸áááşáážá
áşáᯠáážááááŻááşááá˛áááŻáˇ ááŻáśá¸ááźááşááąá¸ááŤáááşá ááŽááąáŹáˇ ááťá˝ááşááąáŹáşáááŻáˇá áᎠEquation á áĄááźáąáááşáááŻá¸áááşáážá
áşááŻááąá¸ááá˛áááŻáˇ ááááťááşáááş áᎠQuadratic Equation áá
áşááŻááŻáśá¸ááᯠáá˝ááşááťááşáááŻáˇ ááááŻááŤáá°á¸á ááŽáááŻáá˝ááşááťááşáᏠáĄááŻááşááááşáááťáŹá¸ááąá... |
Let me do it over here. 14 times 14. 4 times 4 is 16. | ---- 14 áĄááźážáąáŹááş 14 4 áĄááźážáąáŹááş 4 á 16 4 áĄááźážáąáŹááş 1 á 4 áĄááąáŤááşá¸1... ááŤá 56 á áá
áşááŻáááşáˇáááşá 1 áĄááźážáąáŹááş 14 á 14 ááŤá 6á 9á1 á፠196 ááąáŤáˇ ááŽááąáŹáˇ ááŽáážáŹ ááŤá 196 ááŽááąáŹáˇ ááťá˝ááşááąáŹáşáááŻáˇ áᎠ1 ááᯠáááŻá
ááŻááşá
ááŹááááŻáá°á¸ 4 áĄááźážáąáŹááş 49 á ááŹáááá˛? |
So 49 times 4. 4 times 9 is 36. 4 times 4 is 16 plus 3 is 190-- or is 19, so you get 196. | 49 áĄááźážáąáŹááş 4 4 áĄááźážáąáŹá 9 á 36 4 áĄááźážáąáŹááş 4 á 16á áĄááąáŤááşá¸ 3 á 190 áááŻáˇáááŻááş 19 ááŤá 196 ááááş ááŽááąáŹáˇ ááŽáážáŹ 196 ááąáŤáˇ ( b² - 4ac) á 196 áĄáážáŻááş 196 ááŽáážáŹ 196 áĄáážáŻááş 196 á 0 áá˛áˇááŽáááş ááŽááąáŹáˇ ááŽáážáŹ ááťá˝ááşááąáŹáşáááŻáˇ áá˝ááşááťááşáááşáááŻááşááąáá˛áˇ áĄááźáąáĄááąáážáŹ |
So we're dealing with a situation where the discriminant is equal to 0. We only have one solution. And if you want, you could try to find that one solution. | Discriminant á 0 áá˛áˇ ááŽááťážáááşá ááŽááąáŹáˇ ááťá˝ááşááąáŹáşáááŻáˇáážáŹ áĄááźáąáááşáááŻá¸áá
áşááŻáá˛áážááááşá áááşááťáŹá¸á
áááşáááşá
áŹá¸áááş áááşááťáŹá¸áĄá˛ááᡠáĄááźáąáááşáááŻá¸áá
áşááŻááᯠáážáŹááźááşáˇáááŻááşááŤáááşá ááŽáĄá
áááşáĄáááŻááşá¸áá
áşááŻááŻáśá¸á 0 áá˛áˇ áážá
áşáááşááááşá¸áááşá¸ááźá
áşáááşá ááŤá 0 áá˛áˇ áá˝áŹá¸ááŽáááşááąá ááŽááąáŹáˇ áĄááźáąáááşáááŻá¸á áĄáážáŻááş b áĄáááŻááşá¸ 2a ááźá
áşáááş ááŽáĄáážáŻááş b á ááťá˝ááşááąáŹáşáááŻáˇ ááŤááᯠááźáŽá¸áĄ... |
Solve for y? We have 3y plus 7 is less than 2y and 4y plus 8 is greater than negative 48. So we have to find all the y's that meet both of these constraints. | y áĄááźáášáĄáąáťááá˝áŹáťááášá¸ áá˝áźáášáŻáášáááŻááá˝áŹ 3y + 7 áááš 2y ááášááášáťááášá¸ áá˝áášáˇ 4y + 8 áááš (-) 48 ááášážááŽá¸ááášá ááŤááᯠáá˝áźáášááŻášáášáááŻááá˝áŹ áĄáŹá¸ááŻáśá¸áąáᏠy ááĄáŹá¸ááŹááşáášááşáŹá¸ááᯠáá˝á
ášááŻá
ááŻáśá¸ááźááš áá˝áŹáąááźááášáťáá
ášááŤááášá áᲠy áĄááźááš áá
ášááŻááşáášá¸á
áŽáá˝áŹáĄáąáťááá˝áŹážáá
ááŻá áĄáŹá¸ááŹááşáášááşáŹá¸áá˝áášáˇ ááŤáááŻáĄáá˝áášááťááášá¸áᏠááŽáá˝áŹá፠ááŤááᯠáá˝áźáášáłáášáááŻááá˝áŹ 3y+7 áááš 2y ááášááášáááš á... |
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