1.

If \[1+\sin x+{{\sin }^{2}}x+.....\]to \[\infty =4+2\sqrt{3},\,0

A. \[x=\frac{\pi }{6}\]
B. \[x=\frac{\pi }{3}\]
C. \[x=\frac{\pi }{3}\]or \[\frac{\pi }{6}\]
D. \[x=\frac{\pi }{3}\]or \[\frac{2\pi }{3}\]
Answer» E.


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