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11547188 No.11547188 [Reply] [Original] [archived.moe]

hey can I get some help with my calculus homework

>> No.11547223

>>11547188
It's easy my friend
To find the extrema you have to find the derivative

x2 + 2's derivative is 2x, now what's the biggest possible value of 2x, well that's infinity, so infinity is your extrema, and how is it graphed? Well it should look like a curvy ramp that goes to infinity

>> No.11547224

>>11547223
lmao

>> No.11547262
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11547262

>>11547188
>our extrema finding procedure

>> No.11547319

Wtf kind of homework is this, are you 15 years old?

>> No.11547322
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11547322

how about this one?

>> No.11547367

>>11547322
The maximum value of sin(x) is 0.999... if anyone tells you otherwise, even your teacher, fucking eviscerate them.
For the second bit, it's concave down when it looks like a titty pointing upwards, and it's concave up when the titty looks like a 90 year old granny's.

>> No.11547385

>>11547322
f(x) = sin x
f '(x) = cos x
f "(x) = -sin x

to find extreme:
f '(x) = 0 => cos x = 0 => x = +- pi/2 + 2pi.n
for 0 < x < 2pi : x = pi/2 and x = 3pi/2

to see if it's max or min:
f "(pi/2) = - sin pi/2 = -1 , -1 < 0 => pi/2 is max
f "(3pi/2) = -sin 3pi/x = 1 , 1 > 0 => 3pi/2 is min

>> No.11547483
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11547483

one more for the road

>> No.11547489

>>11547188
Literally against the rules so fuck off

>> No.11547590

>>11547188
Have you tried fellating your professor?

>> No.11547592
File: 12 KB, 258x245, 354deaa3770912621bb816da070346ab.jpg [View same] [iqdb] [saucenao] [google] [report]
11547592

>>11547590

>> No.11547626

>>11547188
> our extrema finding procedure
> concave up, concave down
> say where they are
are you the one writing your own exam?

>> No.11547636

>>11547188
This is literally high school shit

>> No.11547862

This thread was moved to >>>/wsr/801773

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