Question

SOLVE THE FOLLOWING Question WITH PROPER STEPS

NO SPAMMING OTHERWISE REPORTED.

PROVE THAT

$if \: \: y = \sin(x) \: \: prove \: that \\ \\ \frac{ {d}^{2} y}{{dx}^{2} } + \tan \: x\frac{dy}{dx}+ y \ { \cos}^{2} x = 0$

Answer 1

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