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cos [cos ^(-1)(-(1)/(7))+sin ^(-1)(-(1)/...

`cos [cos ^(-1)(-(1)/(7))+sin ^(-1)(-(1)/(7))]=`

A

`-(1)/(3)`

B

0

C

`(1)/(3)`

D

`(4)/(9)`

Text Solution

Verified by Experts

The correct Answer is:
B
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