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cos[Cos^(-1)(-1/7)+Sin^(-1)(-1/7)]=...

`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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