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2"Tan"^(-1)(1)/(5)+"Sec"^(-1)(5 sqrt(2))...

`2"Tan"^(-1)(1)/(5)+"Sec"^(-1)(5 sqrt(2))/(7)+"Tan"^(-1)(1)/(8)=`

A

`pi/6`

B

`pi/4`

C

`pi/3`

D

`pi/8`

Text Solution

Verified by Experts

The correct Answer is:
B
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