The sum of all the solutions of cot thet...

The sum of all the solutions of `cot theta = sin 2 theta (theta ne n pi, n " integer"), 0 le theta le pi` . is

A

`(3 pi)/( 2)`

B

`pi`

C

`(3 pi)/(4)`

D

`2 pi`

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The correct Answer is:

A

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