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The solution of the equation "cos"^(2)...

The solution of the equation
`"cos"^(2) x-2 "cos" x = 4 "sin" x - "sin" 2x (0 le x le pi)`, is

A

`pi + tan^(-1) (-1//2)`

B

`pi - cot^(-1)(1//2)`

C

`pi - tan^(-1) 2`

D

none of these

Text Solution

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The correct Answer is:
A
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