Use implicit differentiation where LaTeX:  \displaystyle y is a function of LaTeX:  \displaystyle x to find the derivative of LaTeX:  \displaystyle 5 y \sin{\left(x^{2} \right)} - 5 e^{x^{3}} \cos{\left(y \right)}=-32

Taking the derivative of both sides using implicit differentiation gives: LaTeX:   - 15 x^{2} e^{x^{3}} \cos{\left(y \right)} + 10 x y \cos{\left(x^{2} \right)} + 5 y' e^{x^{3}} \sin{\left(y \right)} + 5 y' \sin{\left(x^{2} \right)} = 0  Solving for LaTeX:  \displaystyle y' gives LaTeX:  \displaystyle y' = \frac{x \left(3 x e^{x^{3}} \cos{\left(y \right)} - 2 y \cos{\left(x^{2} \right)}\right)}{e^{x^{3}} \sin{\left(y \right)} + \sin{\left(x^{2} \right)}}