diff-equation

Question: Solution of the equation $\cos x\cos y\frac{dy}{dx}=-\sin x\sin y$is



1) $\sin y+\cos x=c$
2) $\sin y-\cos x=c$
3) $\sin y.\cos x=c$
4) $\sin y=c\cos x$
Solution: Explanation: No Explanation
Variable separable type differential equations

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