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If 1 + sintheta + sin^2theta + sin^3thet...

If `1 + sintheta + sin^2theta + sin^3theta +.. oo = 4 + 2sqrt3, 0 lt theta lt pi, theta != pi/2` then

A

`pi/6`

B

`pi/4`

C

`pi/3 or (2pi)/(3)`

D

none of these

Text Solution

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The correct Answer is:
A
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