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Find the value of cos( 2 cos^(-1) x +...

Find the value of
`cos( 2 cos^(-1) x + sin^(-1) x) " when " x = 1/5`

A

` (2 sqrt(6))/(5) `

B

`- (2 sqrt(6))/(5) `

C

` (3 sqrt(6))/(5) `

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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