I already know this equation is not exact. The thing is, I never learned how to do partial derivatives so that is what I need help with. The equation is $\displaystyle (e^xsiny+3y)dx-(3x-e^xsiny)dy=0$

I know that the sign in the middle needs to be + so then you have $\displaystyle (e^xsiny+3y)dx+(-3x+e^xsiny)dy=0$.

Then M=$\displaystyle e^xsiny+3y$ and N=$\displaystyle -3e^x+e^xsiny$. So, I need help getting $\displaystyle M_y and N_x$.