Question

If (2 + sin x) $\frac{dy}{dx}$ + (y + 1) cos x = 0 and y(0) = 1, then y $\bigg \lgroup \frac{\pi}{2}\bigg \rgroup$ is equal to :
(1) $\frac{4}{3}$
(2) $\frac{1}{3}$
(3) $-\frac{2}{3}$
(4) $-\frac{1}{3}$

Answer 1

Answer:

Step-by-step explanation:

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