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If a=b-sqrt(b^(2)-1), express b in terms...

If `a=b-sqrt(b^(2)-1)`, express b in terms of a.

A

` b= (1)/(2) (a^(-1) -a)`

B

` b= (1)/(2) (a+a^(-1))`

C

` b=(1)/(2) (a-a^(-1))`

D

` b= (-1)/(2) (a+a^(-1))`

Text Solution

Verified by Experts

The correct Answer is:
B
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