1.

The solution of \[\frac{dy}{dx}+2y\,\tan x=\sin x\], is     [DCE 1999]

A.                 \[y\,{{\sec }^{3}}x={{\sec }^{2}}x+c\]       
B.                 \[y\,{{\sec }^{2}}x=\sec x+c\]
C.                 \[y\,\,\sin x=\tan x+c\]          
D.                 None of these
Answer» C.                 \[y\,\,\sin x=\tan x+c\]          


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