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help-10
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220,517,274,845,577,200
ramonov
04/08/2022 11:56:31
-(x^2 - x)
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help-10
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505,759,834,348,584,960
kishblockpro
04/08/2022 11:56:35
i actually did this
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kishblockpro
04/08/2022 11:56:40
i did factoring out x aswell
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help-10
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505,759,834,348,584,960
kishblockpro
04/08/2022 11:56:42
but i didnt get anywhere
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help-10
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ramonov
04/08/2022 11:56:48
why factor out x
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help-10
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kishblockpro
04/08/2022 11:56:52
i dont know
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
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ramonov
04/08/2022 11:57:16
> -(x^2 - x) and then use the approach outlined above to complete the square for the stuff within the parentheses
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help-10
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kishblockpro
04/08/2022 11:57:28
okay
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kishblockpro
04/08/2022 11:59:35
thats great and all, but after doing that i have to maximise the value of the stuff in the parentheses while keeping track of minimising the value of the stuff in the last term we used to complete the square, which is its own challenge almost equivalent
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help-10
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kishblockpro
04/08/2022 11:59:56
oth are squared too
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help-10
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kishblockpro
04/08/2022 11:59:59
*both
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help-10
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ramonov
04/08/2022 11:59:59
what do you have after completing the square
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help-10
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kishblockpro
04/08/2022 12:01:57
i have x^2 - x + 0.25
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help-10
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ramonov
04/08/2022 12:02:49
no
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kishblockpro
04/08/2022 12:02:55
wait but
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help-10
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kishblockpro
04/08/2022 12:03:09
(x+0.5)(x+0.5) = x^2 - x + 0.25
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
220,517,274,845,577,200
ramonov
04/08/2022 12:03:17
you should have an expression equivalent to what you started with
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help-10
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kishblockpro
04/08/2022 12:03:24
oh lol
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help-10
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ramonov
04/08/2022 12:03:32
show everything
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help-10
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kishblockpro
04/08/2022 12:03:35
(x + 0.5)(x + 0.5) - 0.5
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
220,517,274,845,577,200
ramonov
04/08/2022 12:03:48
don't cut out certain parts and ignore everything else
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help-10
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220,517,274,845,577,200
ramonov
04/08/2022 12:03:53
still not right
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help-10
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kishblockpro
04/08/2022 12:03:56
wait what did i cut out this time
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505,759,834,348,584,960
kishblockpro
04/08/2022 12:03:58
hmmmmm
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ramonov
04/08/2022 12:04:10
errors with signs too
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220,517,274,845,577,200
ramonov
04/08/2022 12:04:17
are you doing this on paper?
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help-10
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kishblockpro
04/08/2022 12:04:35
yes i am
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kishblockpro
04/08/2022 12:04:41
i am a huge nimrod so expect it from me
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help-10
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220,517,274,845,577,200
ramonov
04/08/2022 12:04:42
try it again
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kishblockpro
04/08/2022 12:04:43
sorry
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kishblockpro
04/08/2022 12:04:45
alr
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help-10
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kishblockpro
04/08/2022 12:05:17
i meant (x - 0.5)(x - 0.5) - 0.25
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help-10
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kishblockpro
04/08/2022 12:05:22
i have no fucking clue why i typed what i did
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help-10
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ramonov
04/08/2022 12:05:36
missing the -( )
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help-10
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505,759,834,348,584,960
kishblockpro
04/08/2022 12:05:44
yeah i know but i thought that would come aftert
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help-10
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kishblockpro
04/08/2022 12:05:46
hmm alr
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
220,517,274,845,577,200
ramonov
04/08/2022 12:05:56
> don't cut out certain parts and ignore everything else
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1,771
help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
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kishblockpro
04/08/2022 12:05:59
0.25 - (x-0.5)(x-0.5)
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
220,517,274,845,577,200
ramonov
04/08/2022 12:06:25
it'll be clear if you express (x-0.5)(x-0.5) as(x-0.5)^2
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
220,517,274,845,577,200
ramonov
04/08/2022 12:06:30
$0.25 - (x-0.5)^2$
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
510,789,298,321,096,700
TeXit
04/08/2022 12:06:33
**ℝamonov**
https://cdn.discordapp.c…274845577216.png
220517274845577216.png
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
505,759,834,348,584,960
kishblockpro
04/08/2022 12:06:45
OHHHHH
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
505,759,834,348,584,960
kishblockpro
04/08/2022 12:06:56
THIS IS WAY BETTER
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help-10
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505,759,834,348,584,960
kishblockpro
04/08/2022 12:07:05
this is what i was looking for
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help-10
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505,759,834,348,584,960
kishblockpro
04/08/2022 12:07:24
so basically nothing positive can come out of that term so its best to make it 0 and 0.5 makes it 0 soooo
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help-10
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kishblockpro
04/08/2022 12:07:28
ahh this is much more satisfying
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help-10
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505,759,834,348,584,960
kishblockpro
04/08/2022 12:07:30
thank you very much
1
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
220,517,274,845,577,200
ramonov
04/08/2022 12:07:34
you should be able to identify the max and when it occurs in this form
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help-10
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kishblockpro
04/08/2022 12:08:15
yes yes i forever thank you, i only knew splitting the middle term and memorised the quadratic formula without understanding this properly, thanks for this dope tool
1
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
220,517,274,845,577,200
ramonov
04/08/2022 12:08:16
it seems like you're doing some sort of pre-calc here, you should've already learned about this stuff
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help-10
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505,759,834,348,584,960
kishblockpro
04/08/2022 12:08:32
i knew about splitting middle term and quad formula but... yeah
1
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
505,759,834,348,584,960
kishblockpro
04/08/2022 12:08:34
i am doing precalc
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
505,759,834,348,584,960
kishblockpro
04/08/2022 12:08:36
for competition math
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help-10
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kishblockpro
04/08/2022 12:08:44
i mean this is competition math
1
0
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
505,759,834,348,584,960
kishblockpro
04/08/2022 12:08:50
thanks !
1
0
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help-10
eb3fd5964a7a4c86a5d55c14763e9ea6
505,759,834,348,584,960
kishblockpro
04/08/2022 12:08:59
.close
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 16:41:54
Hii somebody can help me understand binary search?
1
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 16:42:42
What I need if I have an even number of elements, where did i start?
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 16:43:06
The 5 element or the 6 element in the list
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help-10
f5d1afe242744c08ada4255a77d1f48a
485,903,210,272,391,200
dldh06
04/08/2022 16:44:27
I believe that's your choice to make
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 16:56:41
i have a question of how many tries worst case i need to do for if i can only do > operation
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help-10
f5d1afe242744c08ada4255a77d1f48a
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AvgBlue
04/08/2022 17:00:37
For example for list with 10 elements and I can be right twice (2) the minimal number of tries is 4 worse case, and for 10 elements and 1 time to be right the you have to go 10 times worse case
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 17:00:44
Something like this
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 17:00:56
The question is completed and not in English
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 17:01:24
I know the answer have something tovdo sith log but i still dont sure
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 17:01:31
@dldh06
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help-10
f5d1afe242744c08ada4255a77d1f48a
200,013,547,491,688,450
a disappointing son
04/08/2022 17:04:46
that's not binary search
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help-10
f5d1afe242744c08ada4255a77d1f48a
200,013,547,491,688,450
a disappointing son
04/08/2022 17:04:54
if you're only using >
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help-10
f5d1afe242744c08ada4255a77d1f48a
200,013,547,491,688,450
a disappointing son
04/08/2022 17:05:27
this is incorrect as well
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help-10
f5d1afe242744c08ada4255a77d1f48a
200,013,547,491,688,450
a disappointing son
04/08/2022 17:05:44
worst case scenario *cannot* be equal to the number of elements in your array
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help-10
f5d1afe242744c08ada4255a77d1f48a
200,013,547,491,688,450
a disappointing son
04/08/2022 17:06:00
binary search would fail if you just used >
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 17:06:45
I want to do a Google search a minute for to see this question in English
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ramonov
0921
ℝamonov
false
1,772
help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 17:07:19
This is the dropping egg question
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help-10
f5d1afe242744c08ada4255a77d1f48a
200,013,547,491,688,450
a disappointing son
04/08/2022 17:17:22
that question doesn't seem to only use >
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help-10
f5d1afe242744c08ada4255a77d1f48a
200,013,547,491,688,450
a disappointing son
04/08/2022 17:17:36
it says if the egg survives, you move up a floor, if the egg breaks, you move down a floor
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 17:18:01
I know but i didn't know this question have a name when i tried to explain
1
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 17:18:15
But thx anyways
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help-10
f5d1afe242744c08ada4255a77d1f48a
255,804,106,583,572,480
AvgBlue
04/08/2022 17:18:21
Good night
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b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:06:22
This is not a homework lol. But just a question I was wondering about. I read in my scripture that for huge numbers $$(a+b)! \ge a!b!$$
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help-10
b8d373093af34390bf9810d84ccb12bf
510,789,298,321,096,700
TeXit
04/08/2022 18:06:25
**mrbrown**
https://cdn.discordapp.c…848122327041.png
145653848122327041.png
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:06:31
is there any way to prove that?
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help-10
b8d373093af34390bf9810d84ccb12bf
608,737,241,581,355,100
SkyTwX
04/08/2022 18:26:47
It is always true @mrbrown
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help-10
b8d373093af34390bf9810d84ccb12bf
510,789,298,321,096,700
TeXit
04/08/2022 18:31:03
**SkyTwX**
https://cdn.discordapp.c…241581355184.png
608737241581355184.png
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help-10
b8d373093af34390bf9810d84ccb12bf
608,737,241,581,355,100
SkyTwX
04/08/2022 18:31:24
@mrbrown sorry double ping
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:31:53
all fine, thank you very much but wait a bit pls!
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:32:07
in the first step you wrote out the faculty notation as far as i can see
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:32:56
i know $a! =1\cdot 2\cdot 3 \dots (a-3)\cdot (a-2) \cdot (a-1) \cdot a$
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485,903,210,272,391,200
dldh06
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false
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:33:13
struggling a bit to grasp my head around (a+b)!
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help-10
b8d373093af34390bf9810d84ccb12bf
510,789,298,321,096,700
TeXit
04/08/2022 18:33:32
**mrbrown**
https://cdn.discordapp.c…848122327041.png
145653848122327041.png
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:35:26
$(a+b)! = 1 \cdot 2 \cdot 3 \dots (a+b-3) \cdot (a+b-2) \cdot (a+b-1) \cdot (a+b)$
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255,804,106,583,572,480
AvgBlue
3654
AvgBlue
false
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help-10
b8d373093af34390bf9810d84ccb12bf
510,789,298,321,096,700
TeXit
04/08/2022 18:35:33
**mrbrown**
https://cdn.discordapp.c…848122327041.png
145653848122327041.png
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help-10
b8d373093af34390bf9810d84ccb12bf
608,737,241,581,355,100
SkyTwX
04/08/2022 18:39:40
Factor out the first $a$ integers to make appear $a!$ Sorry for the ping again @mrbrown
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help-10
b8d373093af34390bf9810d84ccb12bf
510,789,298,321,096,700
TeXit
04/08/2022 18:39:42
**SkyTwX**
https://cdn.discordapp.c…241581355184.png
608737241581355184.png
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:41:53
Ohhhhhhhhhhhhhhhhhh I understand :happy:
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:42:50
$(a+b)!=1\cdot 2 \dots a \cdot (a+1) \cdot (a+2) \dots (a+b-2) \cdot (a+b-1) \cdot (a+b)$
1
0
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help-10
b8d373093af34390bf9810d84ccb12bf
510,789,298,321,096,700
TeXit
04/08/2022 18:42:57
**mrbrown**
https://cdn.discordapp.c…848122327041.png
145653848122327041.png
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:44:32
ah ok you dropped all the $a$'s except $a!$ on your next step leaving you with $a! b!$
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:44:33
alight!
1
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help-10
b8d373093af34390bf9810d84ccb12bf
145,653,848,122,327,040
mrbrown
04/08/2022 18:44:40
thank you very much @SkyTwX
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help-10
b8d373093af34390bf9810d84ccb12bf
510,789,298,321,096,700
TeXit
04/08/2022 18:45:17
**mrbrown**
https://cdn.discordapp.c…848122327041.png
145653848122327041.png
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