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Math Help - differentiate this equation...

  1. #1
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    differentiate this equation...


    I blanked on how to solve this. I thought i take the seventh root and put it inside, so it would be (x)^7/2 then differentiate ...but i was wrong. Any takers? Thanks!
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  2. #2
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    Wouldn't it just be (1/(seventh root of x)) * Chain rule?
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  3. #3
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    \sqrt[7]{x} = x^{1/7}

    You can use chain rule.
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  4. #4
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    Or even easier:

    f(x) = \ln(\sqrt[7]{x}) = \ln(x^{1/7}) = \frac{1}{7} \ln(x)
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  5. #5
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    It was that part i forgot. thanks.
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  6. #6
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    answer

    f(x)=(1/7)lnx
    so f'(x)=1/7x
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