10 thoughts on “Derivatives of sin(x) and cos(x) | Derivative rules | AP Calculus AB | Khan Academy

  • July 25, 2017 at 6:19 pm
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    First πŸ™‚

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  • July 25, 2017 at 6:21 pm
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    such a great video
    Thank you Khan academy for your help ☺😊

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  • July 25, 2017 at 6:23 pm
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    But it could be a completely new function, just by analysing the graph. It could also be (cos(x))^3

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  • July 25, 2017 at 6:32 pm
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    Awesome

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  • July 25, 2017 at 6:44 pm
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    you know sal….when I looking for explaining for some topics and I find that you made video explaining what I was looking for….I become The happiest person in the world.

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  • July 25, 2017 at 10:17 pm
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    Khan you are such a legend

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  • November 17, 2018 at 6:30 am
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    Just awesome

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  • April 29, 2019 at 2:00 pm
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    How do we know if it is -1 or 1?πŸ˜…

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  • June 13, 2019 at 3:10 am
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    You are fantastic!!!

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