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help-10
ba352df6da12476eb3965ed662a7e967
858,015,086,139,539,500
Angelina_simmer
11/08/2021 13:22:45
3=x^2
1
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help-10
ba352df6da12476eb3965ed662a7e967
200,013,547,491,688,450
a disappointing son
11/08/2021 13:22:54
correct
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help-10
ba352df6da12476eb3965ed662a7e967
858,015,086,139,539,500
Angelina_simmer
11/08/2021 13:23:04
🙂
1
0
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help-10
ba352df6da12476eb3965ed662a7e967
200,013,547,491,688,450
a disappointing son
11/08/2021 13:23:06
and that's an easy solve for ya
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help-10
ba352df6da12476eb3965ed662a7e967
858,015,086,139,539,500
Angelina_simmer
11/08/2021 13:23:20
i think i love maths
1
0
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help-10
ba352df6da12476eb3965ed662a7e967
858,015,086,139,539,500
Angelina_simmer
11/08/2021 13:23:25
haha
1
0
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help-10
ba352df6da12476eb3965ed662a7e967
858,015,086,139,539,500
Angelina_simmer
11/08/2021 13:24:29
how about (iii)
1
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help-10
ba352df6da12476eb3965ed662a7e967
858,015,086,139,539,500
Angelina_simmer
11/08/2021 13:24:33
?
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help-10
fea9d77f3c11444280f68c04f9c25e2d
474,685,497,281,609,700
『𝔱𝔢𝔪𝔭𝔢𝔰𝔱』
03/06/2022 14:11:47
how do i get a_2019
https://cdn.discordapp.c…7204/unknown.png
unknown.png
1
0
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help-10
fea9d77f3c11444280f68c04f9c25e2d
474,685,497,281,609,700
『𝔱𝔢𝔪𝔭𝔢𝔰𝔱』
03/06/2022 14:12:52
.close
1
0
null
null
null
null
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help-10
d652258c5cea49fe90053acd32dbdb37
474,685,497,281,609,700
『𝔱𝔢𝔪𝔭𝔢𝔰𝔱』
03/06/2022 14:13:00
sorry shen
1
0
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:24:36
Does anyone know if this true or false
https://cdn.discordapp.c…564/IMG_8220.jpg
IMG_8220.jpg
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:24:40
I can’t find anything in the textbook
0
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help-10
d652258c5cea49fe90053acd32dbdb37
193,942,262,336,454,660
KurtDee
03/06/2022 14:26:02
So do you know u-substitution?
0
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null
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help-10
d652258c5cea49fe90053acd32dbdb37
800,622,149,903,056,900
Shen
03/06/2022 14:27:54
Wouldn't you need the integrand to be $g(h(x)) \, h'(x)$ instead of $g(h(x)) \, h(x)$ for that?
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help-10
d652258c5cea49fe90053acd32dbdb37
510,789,298,321,096,700
TeXit
03/06/2022 14:27:57
**Shen**
https://cdn.discordapp.c…149903056927.png
800622149903056927.png
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help-10
d652258c5cea49fe90053acd32dbdb37
193,942,262,336,454,660
KurtDee
03/06/2022 14:28:04
oh fuck true
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help-10
d652258c5cea49fe90053acd32dbdb37
692,654,133,785,657,300
Alexander42
03/06/2022 14:28:27
thats the whole point of this question
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:30:42
Wait what?
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help-10
d652258c5cea49fe90053acd32dbdb37
193,692,307,453,771,780
Syst3ms
03/06/2022 14:31:50
the point is that it looks like a chain rule, but isn't
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help-10
d652258c5cea49fe90053acd32dbdb37
193,692,307,453,771,780
Syst3ms
03/06/2022 14:32:07
it's a little trick
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:32:36
I see that
0
1
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:32:46
But it’s like my brain keeps telling me it’s false
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:32:48
But I’m not sure
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:33:11
Like I did the u substitution
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:35:42
Anyone?
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help-10
d652258c5cea49fe90053acd32dbdb37
692,654,133,785,657,300
Alexander42
03/06/2022 14:36:31
then try to think of some examples where it goes wrong (constant function are always good for a start)
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:36:42
So it is false that’s what I did
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:38:22
Is that good @Alexander42
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KurtDee
5580
KurtDee
false
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help-10
d652258c5cea49fe90053acd32dbdb37
692,654,133,785,657,300
Alexander42
03/06/2022 14:39:37
yes, its false. Of course you should think about it so long that you either have a counterexample or a proof for it
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:39:47
@Alexander42
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:39:50
Can u check some?
0
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800,622,149,903,056,900
Shen
1106
Shen
false
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:39:55
Of my answers
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:41:18
Or anyone is this one good?
https://cdn.discordapp.c…466/IMG_8224.jpg
IMG_8224.jpg
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:41:28
I feel pretty confident on it
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:43:00
Anyone?
0
1
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null
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
411,882,877,933,060,100
Herels
03/06/2022 14:45:14
well it's true
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help-10
d652258c5cea49fe90053acd32dbdb37
411,882,877,933,060,100
Herels
03/06/2022 14:45:56
or no, hmm wait
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:46:03
Wait this one is true
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:46:10
I just redid it
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:46:17
Im pretty sure they both true
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369,141,023,831,752,700
insane6942
8463
insane6942
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:48:42
Is that right @Herels ?
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help-10
d652258c5cea49fe90053acd32dbdb37
411,882,877,933,060,100
Herels
03/06/2022 14:49:30
idk
0
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692,654,133,785,657,300
Alexander42
6205
Alexander42
false
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
411,882,877,933,060,100
Herels
03/06/2022 14:50:08
if h(a) = h(b), maybe that means h is constant on (a,b)
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:50:16
Yeah that’s what I was thinking
0
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692,654,133,785,657,300
Alexander42
6205
Alexander42
false
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:50:31
@Herels is this one right?
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:50:47
https://cdn.discordapp.c…196/IMG_8227.jpg
IMG_8227.jpg
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help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:50:54
That's not a supported assumption. I could name many functions that's not constant on some interval (a, b), yet h(a) = h(b)
0
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
411,882,877,933,060,100
Herels
03/06/2022 14:51:14
yea I know
0
1
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:51:43
So is it false then @Gamer Dio I really don’t get it
0
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help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:53:18
Yeah. Let b = 2, a = -2, g(x) = x, and h(x) = x². h(2) = h(-2), and ∫x²*x² dx = ∫ x⁴ dx is nonzero on that interval
0
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:53:29
Oh I see
0
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:53:51
So this one false
https://cdn.discordapp.c…338/IMG_8228.png
IMG_8228.png
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:54:05
This one true?
https://cdn.discordapp.c…198/IMG_8224.jpg
IMG_8224.jpg
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:54:13
Did I understand that properlyv
0
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:55:56
Consider the integral of 1/x² from -1 to ∞. Does that diverge?
0
1
411,882,877,933,060,100
Herels
1420
Herels
false
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:56:00
Yes
0
1
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:56:16
What about the integral of 1/x² from 1 to ∞?
0
1
null
null
null
null
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:56:18
Wait shoot no 🤦‍♀️
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:56:23
It rotates to infinity
0
1
411,882,877,933,060,100
Herels
1420
Herels
false
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:56:32
Rotates to infinity?
0
1
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:56:37
Moves to infinity
0
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null
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:57:04
Elaborate
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help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:57:30
Like the domain and range would | o goes to oo
0
1
521,464,336,284,254,200
Gamer Dio
7663
Gamer Dio
false
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:57:46
What
0
1
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help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:58:22
The integral of 1/x² from -1 to ∞ diverges thanks to the asymptote at x=0.
0
1
null
null
null
null
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:58:53
But what about the integral of 1/x² from 1 to ∞? Does that diverge or converge?
0
1
null
null
null
null
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:59:08
Converge
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:59:36
Is -1 < 1?
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 14:59:41
Yes
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:59:50
Then we've found a counterexample
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 14:59:58
This is false
0
1
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1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:00:12
Okay so they both false?
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 15:00:16
Yep
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:02:12
So this one is it good @Gamer Dio
https://cdn.discordapp.c…904/IMG_8231.png
IMG_8231.png
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 15:02:42
Dunno, I don't feel like evaluating that
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:02:56
Okay
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:03:43
This one false @Gamer Dio ?
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:03:57
https://cdn.discordapp.c…886/IMG_8233.png
IMG_8233.png
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 15:04:16
Take the derivative of the RHS and see if you get the integrand
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:04:23
Which I didn’t
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:04:28
So I’m pretty sure it’s false
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:04:57
These true or false ones really trip me up 🙁
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 15:05:15
It's false. You'll see that the derivative is not the integrand
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:05:42
Thx ur a life saver
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:05:48
This one also false?
https://cdn.discordapp.c…878/IMG_8234.jpg
IMG_8234.jpg
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:06:06
I used this identity for it @Gamer Dio
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:06:10
Arcsin(x) + arccos(x) = pi/2
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 15:07:36
Yep
0
1
521,464,336,284,254,200
Gamer Dio
7663
Gamer Dio
false
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:08:35
This one is true? @Gamer Dio
https://cdn.discordapp.c…314/IMG_8237.png
IMG_8237.png
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 15:09:09
Is this a test?
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:09:12
No
0
1
521,464,336,284,254,200
Gamer Dio
7663
Gamer Dio
false
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 15:09:25
Yeah, it's true.
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:09:37
Tests are in person for me
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:09:48
This is just hw
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:10:01
But for the true or false ones we get one try 🙁
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:22:42
How about this one @Gamer Dio
https://cdn.discordapp.c…429/IMG_8244.jpg
IMG_8244.jpg
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
521,464,336,284,254,200
Gamer Dio
03/06/2022 15:23:08
Use IBP
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:24:20
Ibp?
0
1
null
null
null
null
null
1,070
help-10
d652258c5cea49fe90053acd32dbdb37
369,141,023,831,752,700
insane6942
03/06/2022 15:24:30
We haven’t learned that I don’t think
0
1
null
null
null
null
null