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741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:50:45
did you follow these calculations?
https://cdn.discordapp.c…t_3.50.36_PM.png
Screen_Shot_2022-02-16_at_3.50.36_PM.png
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:51:02
yea im using the du
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:51:16
what about it?
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:51:21
how does that become -1/8
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:51:30
isnt it supposed to stay -8x
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:51:45
did you write the original integral down
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:51:54
yes
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:52:04
do you see $xdx$?
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
510,789,298,321,096,700
TeXit
02/16/2022 18:52:07
**riemann**
https://cdn.discordapp.c…205387477002.png
261933205387477002.png
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:52:16
yes
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:52:23
what is that equal to
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:52:36
-1/8du
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:52:42
there's your answer
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:53:03
how does it become -1/8du
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:54:18
how does what become -1/8 du?
0
1
211,997,105,026,236,400
introvert
1113
introvert
false
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:54:32
the -8x
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:54:33
you said you followed these calculations
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:54:54
i did but i dont know how it they got the answer
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:54:57
write this out on paper
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:55:05
then you didn't follow it
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:55:30
do you get $du = -8x dx$ ?
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
510,789,298,321,096,700
TeXit
02/16/2022 18:55:33
**riemann**
https://cdn.discordapp.c…205387477002.png
261933205387477002.png
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:56:10
yea from the u=1-4x^2 it becomes -8x
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:56:49
solve for $x dx$
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
510,789,298,321,096,700
TeXit
02/16/2022 18:56:52
**riemann**
https://cdn.discordapp.c…205387477002.png
261933205387477002.png
0
1
211,997,105,026,236,400
introvert
1113
introvert
false
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 18:58:21
it's better to write this as $\int (1-4x^2)^{-1/2} x dx$
https://cdn.discordapp.c…t_3.57.57_PM.png
Screen_Shot_2022-02-16_at_3.57.57_PM.png
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
510,789,298,321,096,700
TeXit
02/16/2022 18:58:24
**riemann**
https://cdn.discordapp.c…205387477002.png
261933205387477002.png
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:59:07
when we solve for xdx should it be -8du
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 18:59:12
why -1/8
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:00:11
$du = -8 x dx$ implies $-8 du = x dx$ ?
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
510,789,298,321,096,700
TeXit
02/16/2022 19:00:13
**riemann**
https://cdn.discordapp.c…205387477002.png
261933205387477002.png
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:00:55
you multiplied -8 to both sides and got $(-8)^2=1$ ?
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
510,789,298,321,096,700
TeXit
02/16/2022 19:00:57
**riemann**
https://cdn.discordapp.c…205387477002.png
261933205387477002.png
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:01:04
yea
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:01:15
,calc (-8)^2
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
510,789,298,321,096,700
TeXit
02/16/2022 19:01:20
Result: ``` 64 ```
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:01:49
start here and try again
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:01:51
wait no divide from both
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:02:06
oh ok
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:02:18
divide -8 from both sides
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:02:27
xdx becomes - 1/8
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:02:32
since theres imaginary 1
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:02:37
on du
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:02:45
there are no imaginary numbers here
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:02:51
no imaginary
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:03:11
i meant like we can add a 1 to it since 1du would be du
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:03:25
adding 1 to du doesn't make any sense
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:03:36
du + 1 ?
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:03:42
no not +1
1
0
510,789,298,321,096,700
TeXit
0796
TeXit
true
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:03:44
oh so
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:03:59
du = -8xdx
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:04:05
divide 8 from both sides
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:04:07
do you understand this yet
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:04:21
i get it
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:04:46
do you _really_ follow these calculations yet
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:05:24
yes now i know why its -1/8
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:08:27
https://cdn.discordapp.c…9168/unknown.png
unknown.png
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:08:33
so for this
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:09:09
oh that's a u
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:09:12
so far so good
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:09:23
x^2 becomes 2x
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:09:26
just follow the same steps
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:09:35
no minus, even easier
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:09:38
we do the some thing
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:09:54
and would get it to be 1/2du
1
0
211,997,105,026,236,400
introvert
1113
introvert
false
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:09:59
instead of 8
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:10:02
wait no
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:10:12
you're rushing your algebra
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:10:16
1/2x du
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
261,933,205,387,477,000
riemann
02/16/2022 19:10:21
don't make this mistake
0
1
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:12:22
would it be 1/2sqrt(u)?
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:13:22
because du = 2xdx
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:13:57
and then dx would be 1/2x du
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:16:05
it would be 1/2sqrt(u) du
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:16:07
got it
1
0
null
null
null
null
null
741
help-10
3a4dd5f96b4f4482ac751c4405081c3c
211,997,105,026,236,400
introvert
02/16/2022 19:21:39
.close
1
0
null
null
null
null
null
742
help-10
d6ba41933e5a4cc8a6486ef46b5e79e0
564,113,178,422,673,400
arun-woopers
02/16/2022 19:29:35
https://cdn.discordapp.c…0740/unknown.png
unknown.png
1
0
null
null
null
null
null
742
help-10
d6ba41933e5a4cc8a6486ef46b5e79e0
350,796,385,525,825,540
ndam500
02/16/2022 19:30:07
plug cos^-1(3/4) or arccos(3/4) in your calculator
0
1
null
null
null
null
null
742
help-10
d6ba41933e5a4cc8a6486ef46b5e79e0
564,113,178,422,673,400
arun-woopers
02/16/2022 19:31:43
hmmmmmmmm
1
0
null
null
null
null
null
742
help-10
d6ba41933e5a4cc8a6486ef46b5e79e0
564,113,178,422,673,400
arun-woopers
02/16/2022 19:32:08
is there any rule that says like if you move cosx over to another side it becomes cos^-1
1
0
null
null
null
null
null
742
help-10
d6ba41933e5a4cc8a6486ef46b5e79e0
564,113,178,422,673,400
arun-woopers
02/16/2022 19:32:09
?
1
0
null
null
null
null
null
742
help-10
d6ba41933e5a4cc8a6486ef46b5e79e0
564,113,178,422,673,400
arun-woopers
02/16/2022 19:32:50
anyways thanks
1
0
510,789,298,321,096,700
TeXit
0796
TeXit
true
742
help-10
d6ba41933e5a4cc8a6486ef46b5e79e0
564,113,178,422,673,400
arun-woopers
02/16/2022 19:32:52
.close
1
0
null
null
null
null
null
743
help-10
aa79099f99104ebc9c220d284ad3c915
832,839,782,928,482,300
Merkish23
02/16/2022 19:41:11
hello i have a simple question
1
0
null
null
null
null
null
743
help-10
aa79099f99104ebc9c220d284ad3c915
832,839,782,928,482,300
Merkish23
02/16/2022 19:42:16
i am rewatching a lecture video from my professor (calc 2) and in the video we are reviewing some rate of change stuff since we just started up the semester again. The function given was f(x)=x^2+3x
1
0
null
null
null
null
null
743
help-10
aa79099f99104ebc9c220d284ad3c915
832,839,782,928,482,300
Merkish23
02/16/2022 19:42:39
i was solving ahead and keep getting -10 whenever i plug -2 into the function but professor gets -7
1
0
null
null
null
null
null
743
help-10
aa79099f99104ebc9c220d284ad3c915
832,839,782,928,482,300
Merkish23
02/16/2022 19:42:51
my calculator also agrees with me and i cant seem to figure out why
1
0
null
null
null
null
null
743
help-10
aa79099f99104ebc9c220d284ad3c915
832,839,782,928,482,300
Merkish23
02/16/2022 19:42:57
im sure it is a stupid mistake onmy end
1
0
null
null
null
null
null
743
help-10
aa79099f99104ebc9c220d284ad3c915
831,976,691,382,878,200
chernberries
02/16/2022 19:51:09
Your professor probably did f’(2) vs f(-2) ie evaluated the derivative
0
1
null
null
null
null
null
743
help-10
aa79099f99104ebc9c220d284ad3c915
832,839,782,928,482,300
Merkish23
02/16/2022 19:54:24
thank you
1
0
null
null
null
null
null
743
help-10
aa79099f99104ebc9c220d284ad3c915
832,839,782,928,482,300
Merkish23
02/16/2022 19:54:26
.close
1
0
null
null
null
null
null
744
help-10
56c8185af446483dbc49c489e6a76d55
502,990,025,613,639,700
Enderluck
02/16/2022 20:05:21
.reopen
1
0
null
null
null
null
null
744
help-10
56c8185af446483dbc49c489e6a76d55
699,384,714,242,555,900
rel_pixty
02/16/2022 20:10:02
i know i was just in a channel but i need help with another one and thats it umm this one looks intimidating because of the <0
https://cdn.discordapp.c…8483104/yeaa.PNG
yeaa.PNG
0
1
null
null
null
null
null
744
help-10
56c8185af446483dbc49c489e6a76d55
266,701,848,969,216,030
opfromthestart
02/16/2022 20:16:34
I believe that it expects you to use the value it gives you for tan and the sign of cos to determine what quadrant theta is in, and then compute the values from there. That should help a bit.
0
1
null
null
null
null
null
744
help-10
56c8185af446483dbc49c489e6a76d55
699,384,714,242,555,900
rel_pixty
02/16/2022 20:18:13
the value 0?
0
1
null
null
null
null
null
744
help-10
56c8185af446483dbc49c489e6a76d55
266,701,848,969,216,030
opfromthestart
02/16/2022 20:19:06
Not quite, it says that it is less than zero, so you know it must be negative. So you should identify in which quadrant both cos and tan are negative, and base your answers around that.
0
1
null
null
null
null
null
744
help-10
56c8185af446483dbc49c489e6a76d55
699,384,714,242,555,900
rel_pixty
02/16/2022 20:19:22
so i have to draw a triange out
0
1
null
null
null
null
null
744
help-10
56c8185af446483dbc49c489e6a76d55
266,701,848,969,216,030
opfromthestart
02/16/2022 20:20:12
A unit circle would also help, but either would work.
0
1
null
null
null
null
null
744
help-10
56c8185af446483dbc49c489e6a76d55
699,384,714,242,555,900
rel_pixty
02/16/2022 20:20:39
wait one question does theta haave to have a hypotnuese as one of its sides
0
1
null
null
null
null
null
744
help-10
56c8185af446483dbc49c489e6a76d55
266,701,848,969,216,030
opfromthestart
02/16/2022 20:21:27
Yes, because if it didnt then it would be in the place of the right angle, which you would not want.
0
1
null
null
null
null
null