Solve this following
Question:

Find , when:

If $\cos ^{-1}\left(\frac{x^{2}-y^{2}}{x^{2}+y^{2}}\right)=\tan ^{-1} a$, prove that $\frac{d y}{d x}=\frac{y}{x}$

Solution:

Administrator

Leave a comment

Please enter comment.
Please enter your name.