Results 1 to 3 of 3

Thread: Please help

  1. #1
    Newbie
    Joined
    Dec 2008
    From
    Pennington gap
    Posts
    16

    Please help

    Use the implicit differentiation to find dy/dx ( WORK OUT)

    x^2 cosy-y^2=e^2x
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Rhymes with Orange Chris L T521's Avatar
    Joined
    May 2008
    From
    Chicago, IL
    Posts
    2,844
    Thanks
    5
    Quote Originally Posted by Emmeyh15@hotmail.com View Post
    Use the implicit differentiation to find dy/dx ( WORK OUT)

    x^2 cosy-y^2=e^2x
    Hint:

    -- Use product rule between the $\displaystyle x^2$ and $\displaystyle \cos(y)$ terms.

    -- keep in mind that $\displaystyle \frac{\,d}{\,dx}\left[f\left(y\right)\right]=f^{\prime}\!\left(y\right)\cdot\frac{\,dy}{\,dx}$.

    -- $\displaystyle \frac{\,d}{\,dx}e^{ax}=ae^{ax}$

    After you differentiate both sides, gather the $\displaystyle \frac{\,dy}{\,dx}$ terms together. From there, it should be easy.

    Can you try to do the problem now?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Dec 2008
    From
    Pennington gap
    Posts
    16
    Sorry i am kinda slow when it come to this my teacher is not very great at explaining this!!!
    Follow Math Help Forum on Facebook and Google+


/mathhelpforum @mathhelpforum