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Learn how to solve product rule of differentiation problems step by step online.
$\cos\left(x\right)^2+x\frac{-\sin\left(y\right)^2}{\sin\left(x\right)^2}\sin\left(y\right)^2=\tan\left(\frac{\pi}{2}-x\right)^2\tan\left(\frac{\pi}{2}-y\right)^2-1$
Learn how to solve product rule of differentiation problems step by step online. Find the derivative using the product rule cos(x)^2+(-sin(y)^2)/(sin(x)^2)xsin(y)^2=tan(pi/2-x)^2tan(pi/2-y)^2-1. Simplifying. Simplifying. Combine all terms into a single fraction with \sin\left(x\right)^2 as common denominator. Simplify the derivative.