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deferentiate e

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  • 20-04-2012 8:13pm
    #1
    tribesman78
    Registered Users Posts: 199 ✭✭


    Need help on this i cant figure out if im right on this one

    f(r) = 2e^sinr

    My Answer
    f'(r) = 2cosre^sinr

    Am i right and if not any idea of how to deferentiate e^sinx


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    #2
    Neodymium
    Registered Users Posts: 179 ✭✭Neodymium


    Yes, that is right.

    wolframalpha.com is handy for checking your answers.


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    #3
    TheBody
    Registered Users Posts: 5,619 ✭✭✭TheBody


    tribesman78 wrote: »
    Need help on this i cant figure out if im right on this one

    f(r) = 2e^sinr

    My Answer
    f'(r) = 2cosre^sinr

    Am i right and if not any idea of how to deferentiate e^sinx

    In general [latex]\frac{d}{dx}e^{f(x)}=f'(x)e^{f(x)[/latex].

    This is simple to prove from the chain rule.


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