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If (1-10icos theta)/(1-10sqrt(3)isinthet...

If `(1-10icos theta)/(1-10sqrt(3)isintheta)` is purely real, then one of the valus of `theta` is

A

`(pi)/(6)`

B

`(pi)/(4)`

C

`(pi)/(3)`

D

`(pi)/(2)`

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The correct Answer is:
A
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