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The most general solution of the equatio...

The most general solution of the equation `tan^-1(1/2secx)+cot^-1(2cosx)=pi/3` is

A

`n pi+pi/6, n in Z`

B

`n pi+-pi/3, n in Z`

C

`2n pi+-pi/3, n in Z`

D

none of these

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The correct Answer is:
C
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