Finding critical points | Using derivatives to analyze functions | AP Calculus AB | Khan Academy

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Sal finds the critical points of f(x)=xe^(-2x_). Created by Sal Khan.

AP Calculus AB on Khan Academy: Bill Scott uses Khan Academy to teach AP Calculus at Phillips Academy in Andover, Massachusetts, and heÕs part of the teaching team that helped develop Khan AcademyÕs AP lessons. Phillips Academy was one of the first schools to teach AP nearly 60 years ago.

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Комментарии
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Not gonna lie, but this video just confused the hell out of me.

ashfernandes
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khan academy confuses me more sometimes

estuardomarroquin
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took me literally 1 minute and I immediately understood everything


as usual, thx khanacademy!

Zakrok
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@2:57 Wouldn't you have to find the derivative of (-4x) following the chain rule?

kevin_lin
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How would you find the critical values for g(x)=x^2-8Inx

samuelnsibande
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I think that you are a grate teacher  in all the Things you teach it would be nice if
i could be in one of your classes when it comes to math, because i half to re take
the GED on the computer and the teacher said I should know about formulas
so I would to know how does one remember  all these things when it comes
on a test when it comes to algerbra I would like to know Thank you

raymondhgerard
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I got these values ( -2, 0, 2 ), are they correct

samuelnsibande
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Why does he talk to me like I'm a sixth-grader learning how to add fractions

benlubeley
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I hate university, but I love YouTube

ninjapirate
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I thought the critical points are when F(x)=0 and when f(0)= y, what about f(0) in this equation?

mrwansabah