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Math Help - Implicit Differentiation

  1. #1
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    Implicit Differentiation

    problem 1 on Flickr - Photo Sharing!

    Help? How do I do this one? The answer I get isn't an option.

    Thank you very much
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  2. #2
    Ted
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    Hello,
    Excause me, can you show your work?
    Maybe your solution is correct. But the another answer is the same but in different form.
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  3. #3
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    Basically I used the quotient rule

    and got (1+y')(x-y)-(1-y')(x+y) / (x-y)^2

    I simplified it to -2y+2y'x/(x-y)^2 = 2x +2yy'

    then I kinda stopped because I noticed that my answer was not going to match the ones given.

    Anyways thank you for responding.
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  4. #4
    Ted
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    Quote Originally Posted by bananasinpajamas View Post
    Basically I used the quotient rule

    and got (1+y')(x-y)-(1-y')(x+y) / (x-y)^2

    I simplified it to -2y+2y'x/(x-y)^2 = 2x +2yy'

    then I kinda stopped because I noticed that my answer was not going to match the ones given.

    Anyways thank you for responding.
    Well, now solve it for y'.

    The question wants you to find y'=\frac{dy}{dx}.
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