If siny =xsin(a+y), prove that dy/dx=(sin^2(a+y))/sina - Sarthaks eConnect | Largest Online Education Community
Prove that, for any real numbers x and y, sin x = sin y implies x =nπ + (-1)^n y , where n ∈ Z - Sarthaks eConnect | Largest Online Education Community
![trigonometry - Trigonometric Theorem Proof: If $\sin x = \sin y$, then, $x = n\pi + (-1)^ny.$ - Mathematics Stack Exchange trigonometry - Trigonometric Theorem Proof: If $\sin x = \sin y$, then, $x = n\pi + (-1)^ny.$ - Mathematics Stack Exchange](https://i.stack.imgur.com/QSAt8.png)