(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Well, it looks simple, but I'm not sure If the answer I'm giving is right.

The function is:

[tex]f(x,y)=\sin|y|[/tex]

And it asks for the partial derivatives, so:

[tex]\displaystyle\frac{\partial f}{\partial x}=0[/tex]

And

[tex]\displaystyle\frac{\partial f}{\partial y}=\begin{Bmatrix}{ \cos|y|}&\mbox{ if }& y>0\\\not{\exists & \mbox{if}& y=0\\-\cos|y| & \mbox{if}& y<0\end{matrix}[/tex]

Is this right?

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# Homework Help: Partial derivative, I'm not sure if my solution is right

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