JEE Math Practice Question
If $$\left( {2 + \sin x} \right){{dy} \over {dx}} + \left( {y + 1} \right)\cos x = 0$$ and y(0) = 1, then $$y\left( {{\pi \over 2}} \right)$$ is equal to :
- A.$$ - {2 \over 3}$$
- B.$$ - {1 \over 3}$$
- C.$${4 \over 3}$$
- D.$${1 \over 3}$$
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