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cos^(-1)(15/17)+2 tan^(-1)(1/5)=...

`cos^(-1)(15/17)+2 tan^(-1)(1/5)=`

A

(a) `(pi)/(2)`

B

(b) `cos^(-1)((171)/(221))`

C

(c) `(pi)/(4)`

D

(d) `cos^(-1)((140)/(221))`

Text Solution

Verified by Experts

The correct Answer is:
D
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