Differential Equations

$\tan y=\left(x^2-1\right) e^{x^2}+C$

$e^{x^2}=\frac{1}{2}\left(x^2-1\right) \tan y e^{x^2}+C$

$\tan y\left(x^2-1\right)=e^{x^2}+C$

$e^{x^2} \tan y=\frac{1}{2}\left(x^2-1\right) e^{x^2}+C$