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Math Help - Some kind of proving qn

  1. #1
    Member maybeline9216's Avatar
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    Question Some kind of proving qn

    Given y= sqr x + ln sqr x, prove that dy/dx = (x + sqr x)/ (2x x sqr x)
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  2. #2
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    mr fantastic's Avatar
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    Quote Originally Posted by maybeline9216 View Post
    Given y= sqr x + ln sqr x, prove that dy/dx = (x + sqr x)/ (2x x sqr x)
    y = x^{1/2} + \ln x^{1/2} = x^{1/2} + \frac{1}{2} \, \ln x.

    Where do you get stuck when differentiating? Take care with the simplifying.
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  3. #3
    Member maybeline9216's Avatar
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    Quote Originally Posted by mr fantastic View Post
    y = x^{1/2} + \ln x^{1/2} = x^{1/2} + \frac{1}{2} \, \ln x.

    Where do you get stuck when differentiating? Take care with the simplifying.
    Thanks i got it already =)
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