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692
help-10
cdea4f50a83248429535b3223c84a7c5
200,013,547,491,688,450
a disappointing son
02/14/2022 12:08:56
don't do people's work for them
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help-10
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LittleMouse
02/14/2022 12:09:14
Help
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help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:11:42
this channel is occupied
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help-10
cdea4f50a83248429535b3223c84a7c5
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prop
02/14/2022 12:12:09
oh sorry
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help-10
cdea4f50a83248429535b3223c84a7c5
259,785,573,332,549,630
prop
02/14/2022 12:12:11
im dumb
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:12:35
https://cdn.discordapp.c…9738/unknown.png
unknown.png
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:12:39
Given AB = AC, C' D = CD, AREA ABC'E = AREA C' DE, Proof C'D = DE ( isosceles right triangle ABC)
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help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:15:21
So, you basically are asked to prove that triangle C'DE is an isosceles right triangle
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:15:34
yea
1
0
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help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:15:36
And we know that triangle BAC is an isosceles right triangle
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tugx
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help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:15:44
So if you can prove that these triangles are similar, you're set
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:15:44
yes
1
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:16:04
how'
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LittleMouse
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help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:16:16
Actually wait, I guess it's not given that these are right angles
0
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:16:25
it is
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692
help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:16:38
isosceles right triangle ABC
1
0
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692
help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:16:52
Is it given that DE is perpendicular to BC?
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:18:07
** An isosceles right triangle ABC with legs of length 2 cm is cut from a sheet of paper that is cross-hatched on one side and is solid gray on the other. The triangle is folded by moving the vertex C to position C ′on side BC.**
1
0
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help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:18:53
Okay then yes, the crease (DE) would be perpendicular to BC
0
1
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692
help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:19:31
So angle C'DE is congruent to angle A because they're both right angles
0
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692
help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:19:53
angle DC'E is congruent to angle C. They are both the corner of the paper
0
1
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692
help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:20:22
That's two congruent angles between triangle DEC' and triangle ABC
0
1
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692
help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:20:29
okay
1
0
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help-10
cdea4f50a83248429535b3223c84a7c5
490,649,542,077,841,400
tatpoj
02/14/2022 12:20:42
Two congruent angles is sufficient to prove that two triangles are similar
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692
help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:20:56
😮
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0
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:20:57
ok
1
0
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:20:59
ty
1
0
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:21:00
.clos
1
0
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help-10
cdea4f50a83248429535b3223c84a7c5
782,087,086,416,461,800
LittleMouse
02/14/2022 12:21:03
.close
1
0
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help-10
d63af548aa8a4504a03660e8c3bd38a0
490,649,542,077,841,400
tatpoj
02/14/2022 12:21:04
sure thing
1
0
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 14:27:58
Hey, i have some problems with 1.d on this question, i've tried applying the variance formula
https://cdn.discordapp.c…3446/unknown.png
unknown.png
0
1
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 14:28:13
https://media.discordapp…3940/unknown.png
0
1
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 14:28:45
I tried to solve it by applying the variance formula to only the concerned data and i get those results but they're wrong Var(Y|X=0) = 0.16245
0
1
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 14:29:36
Var(Y|X=1) = 0.00225
0
1
null
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 14:32:27
Var(Y|X=0) should be equal to 0,1056
0
1
null
null
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
261,933,205,387,477,000
riemann
02/14/2022 16:40:05
Can you share a sample of the data here
0
1
null
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 16:40:57
https://media.discordapp…3446/unknown.png
0
1
null
null
null
null
null
693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 16:41:03
Check the 4 points given in the table
0
1
null
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
261,933,205,387,477,000
riemann
02/14/2022 16:42:12
Do you know the individual x_i values?
0
1
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 16:42:24
wdym?
0
1
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 16:42:30
oh no i dont
0
1
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 16:42:33
only the couple (x,y)
0
1
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
261,933,205,387,477,000
riemann
02/14/2022 16:42:33
These x_i
0
1
null
null
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
261,933,205,387,477,000
riemann
02/14/2022 16:43:45
Try using this formula instead https://en.m.wikipedia.org/wiki/Conditional_variance
0
1
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null
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null
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
261,933,205,387,477,000
riemann
02/14/2022 16:44:17
https://wikimedia.org/api/rest_v1/media/math/render/svg/d0ec2a666702bb70daec781b5fa8e52533fd72d4
0
1
null
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null
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 16:45:22
hm i see, for the conditional mean, i would just have to do the mean the data that has x=1 for example?
0
1
null
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
221,712,123,930,214,400
Kardiox
02/14/2022 17:01:41
Thanks for the help, imma loop into it more in depth 😄
0
1
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693
help-10
d63af548aa8a4504a03660e8c3bd38a0
261,933,205,387,477,000
riemann
02/14/2022 17:37:23
yea. in fact, parts b and c set you up to do part d's calculations.
0
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221,712,123,930,214,400
Kardiox
8789
Kardiox
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694
help-10
a145b07528f54c4b97b2ddf151a01b39
261,933,205,387,477,000
riemann
02/14/2022 19:22:27
what do you think?
1
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261,933,205,387,477,000
riemann
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694
help-10
a145b07528f54c4b97b2ddf151a01b39
261,933,205,387,477,000
riemann
02/14/2022 19:23:03
apply things you learned in class
1
0
null
null
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694
help-10
a145b07528f54c4b97b2ddf151a01b39
261,933,205,387,477,000
riemann
02/14/2022 19:25:15
one way a function is discontinuous is when the denominator are zero
1
0
null
null
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null
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694
help-10
a145b07528f54c4b97b2ddf151a01b39
295,654,938,741,309,440
M8732
02/14/2022 19:28:03
From the rules: "When asking for help, do not insist with getting just the answer; we are here to help you learn, not do the work for you. Likewise, if you are providing help to others, try your best to explain and elaborate instead of simply giving away the answer." 😮
0
1
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694
help-10
a145b07528f54c4b97b2ddf151a01b39
261,933,205,387,477,000
riemann
02/14/2022 19:28:48
can the denominator be zero?
1
0
null
null
null
null
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694
help-10
a145b07528f54c4b97b2ddf151a01b39
261,933,205,387,477,000
riemann
02/14/2022 19:29:06
why not?
1
0
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null
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694
help-10
a145b07528f54c4b97b2ddf151a01b39
295,654,938,741,309,440
M8732
02/14/2022 19:29:43
Not really, usually one sees the point 0 as just undefined. Thus it's neither continous nor discontinous.
0
1
221,712,123,930,214,400
Kardiox
8789
Kardiox
false
694
help-10
a145b07528f54c4b97b2ddf151a01b39
261,933,205,387,477,000
riemann
02/14/2022 19:30:57
oh shit you're right
1
0
null
null
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null
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694
help-10
a145b07528f54c4b97b2ddf151a01b39
295,654,938,741,309,440
M8732
02/14/2022 19:35:17
Which point do you think would be discontinous @Deleted User?
0
1
null
null
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null
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695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:15:24
how do i convert this
https://cdn.discordapp.c…6862/unknown.png
unknown.png
1
0
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:15:36
to smth like this
https://cdn.discordapp.c…4078/unknown.png
unknown.png
1
0
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:16:31
I don't think you should or can.
0
1
221,712,123,930,214,400
Kardiox
8789
Kardiox
false
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:16:49
It's to different.
0
1
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:18:06
I would suggest to try substitution to solve the earlier integral.
0
1
null
null
null
null
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695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:31:07
how about these?
https://cdn.discordapp.c…6532/unknown.png
unknown.png
1
0
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:31:21
basically, my teacher wants us to choose one of these to solve
1
0
456,226,577,798,135,800
Deleted User
0000
Deleted User
false
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:31:36
by converting 244 into smth in this table
1
0
456,226,577,798,135,800
Deleted User
0000
Deleted User
false
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:32:57
I think they are all different.
0
1
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:33:05
Read the heading
0
1
261,933,205,387,477,000
riemann
2529
riemann
false
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:33:26
a² + u² is not something we have.
0
1
295,654,938,741,309,440
M8732
6402
M8732
false
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:36:15
i think i found one
https://cdn.discordapp.c…0054/unknown.png
unknown.png
1
0
456,226,577,798,135,800
Deleted User
0000
Deleted User
false
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:36:34
Nope
0
1
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:36:45
Do you know how to substitute?
0
1
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:36:48
oops forgot the sqrt
1
0
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:36:53
yeah
1
0
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:36:59
but my teacher wants to do smth diff
1
0
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:37:13
aka finding one from the table and plugging values
1
0
295,654,938,741,309,440
M8732
6402
M8732
false
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:37:17
I don't think there is much differnet you can do.
0
1
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
749,753,900,885,868,700
kimchi
02/14/2022 20:37:38
https://cdn.discordapp.c…6848/unknown.png
unknown.png
1
0
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:38:08
Ok, if you want. 😄
0
1
null
null
null
null
null
695
help-10
ecd33b95887c4c8b9c45d156b7353d83
295,654,938,741,309,440
M8732
02/14/2022 20:38:48
Idk what the teacher wants to teach with that but I guess you have to follow his plan.
0
1
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 20:47:29
for b would it be (1/3+h-1) - (1/3-1) / h
1
0
null
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help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 20:47:44
https://cdn.discordapp.c…4746/unknown.png
unknown.png
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295,654,938,741,309,440
M8732
6402
M8732
false
696
help-10
31e6d42e85f94479b7f7abc596e29cd3
872,024,354,572,103,700
<><><>
02/14/2022 20:58:08
Did you mean $\frac{f(3+h) - f(3)}{3+h-3}$
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
510,789,298,321,096,700
TeXit
02/14/2022 20:58:10
**azeem321**
https://cdn.discordapp.c…354572103731.png
872024354572103731.png
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help-10
31e6d42e85f94479b7f7abc596e29cd3
872,024,354,572,103,700
<><><>
02/14/2022 20:58:33
If so yes, that's good
0
1
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null
null
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 20:58:41
oh my
1
0
null
null
null
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 20:58:44
thank you haha
1
0
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 20:59:18
where would the 3+ h - 3 come from?
1
0
null
null
null
null
null
696
help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 20:59:35
what about the -1?
1
0
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null
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
872,024,354,572,103,700
<><><>
02/14/2022 21:00:41
This is the limit definition you learned?
https://cdn.discordapp.c…4771/unknown.png
unknown.png
0
1
null
null
null
null
null
696
help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 21:00:58
yes sir
1
0
null
null
null
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
872,024,354,572,103,700
<><><>
02/14/2022 21:01:36
The limit definition is actually $\frac{f(x+h) - f(x)}{x+h-x} = \frac{f(x+h)-f(x)}{h}$
0
1
null
null
null
null
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
510,789,298,321,096,700
TeXit
02/14/2022 21:01:39
**azeem321**
https://cdn.discordapp.c…354572103731.png
872024354572103731.png
0
1
null
null
null
null
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
872,024,354,572,103,700
<><><>
02/14/2022 21:01:42
So same thing really
0
1
null
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 21:01:59
oh
1
0
null
null
null
null
null
696
help-10
31e6d42e85f94479b7f7abc596e29cd3
872,024,354,572,103,700
<><><>
02/14/2022 21:02:15
$f(3+h) = \frac{1}{3+h-1}$
0
1
null
null
null
null
null
696
help-10
31e6d42e85f94479b7f7abc596e29cd3
510,789,298,321,096,700
TeXit
02/14/2022 21:02:18
**azeem321**
https://cdn.discordapp.c…354572103731.png
872024354572103731.png
0
1
null
null
null
null
null
696
help-10
31e6d42e85f94479b7f7abc596e29cd3
872,024,354,572,103,700
<><><>
02/14/2022 21:02:41
So it seems what you did above was right
0
1
null
null
null
null
null
696
help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 21:03:26
ohh
1
0
null
null
null
null
null
696
help-10
31e6d42e85f94479b7f7abc596e29cd3
438,776,123,485,061,100
christine
02/14/2022 21:04:19
how do i carry on there from there
1
0
null
null
null
null
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696
help-10
31e6d42e85f94479b7f7abc596e29cd3
872,024,354,572,103,700
<><><>
02/14/2022 21:07:22
So you have $\frac{\frac{1}{3+h-1}-\frac{1}{2}}{h}$
0
1
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