यदि a=(2-sqrt(5))/(2+sqrt(5)) तथा b=(2+s...

यदि `a=(2-sqrt(5))/(2+sqrt(5))` तथा `b=(2+sqrt(5))/(2-sqrt(5))` हो तो `a^(2)-b^(2)` का मान है

A

`-144 sqrt(5)`

B

`144 sqrt(5)`

C

`8sqrt(5)`

D

`-18`

Verified by Experts

The correct Answer is:

A

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