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If tan alpha=(1+2^(-x))^(-1), tan beta=(...

If `tan alpha=(1+2^(-x))^(-1), tan beta=(1+2^(x+1))^(-1)` then `alpha+beta` equals.................. A) `pi/6` B) `pi/4` C) `pi/3` D) `pi/2`

A

`pi/6`

B

`pi/4`

C

`pi/3`

D

`pi/2`

Text Solution

Verified by Experts

The correct Answer is:
B
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