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Math Help - differentiation f(x)=xe^(5x), f'(x)=(1/5)

  1. #1
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    differentiation f(x)=xe^(5x), f'(x)=(1/5)

    differentiation f(x)=xe^(5x), f'(x)=(1/5)


    ok so i got 5xe^5x + e^5x

    now what do i do with the (1/5).
    and is my differentiation correct?
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by darkblue View Post
    differentiation f(x)=xe^(5x), f'(x)=(1/5)


    ok so i got 5xe^5x + e^5x

    now what do i do with the (1/5).
    and is my differentiation correct?
    your differentiation is correct. as to what to do with the (1/5), i think you just equate it to the derivative and i guess try to solve for x (which i think will be hard) what were the full instructions?
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    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by Jhevon View Post
    your differentiation is correct. as to what to do with the (1/5), i think you just equate it to the derivative and i guess try to solve for x (which i think will be hard) what were the full instructions?
    ok, so maybe its just me, but i tried equating and solving for x, cant do it, as i thought. so im guessing thats not what the question asked
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  4. #4
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    thank you.
    i'm confused also.
    but i don't know if he means to do the integral of it.
    that was all the directions.

    like should i do integral of 5e^(5x)x+(e^5x) x dx ?
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  5. #5
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by darkblue View Post
    thank you.
    i'm confused also.
    but i don't know if he means to do the integral of it.
    that was all the directions.

    like should i do integral of 5e^(5x)x+(e^5x) x dx ?
    you're telling me the question was phrased just like that?

    "differentiation f(x)=xe^(5x), f'(x)=(1/5)"
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