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If tan25^(@) = x, then(tan155^(@) - tan1...

If `tan25^(@) = x`, then`(tan155^(@) - tan115^(@))/(1 + tan155^(@) tan115^(@))` equals :

A

`(1 + x^(2))/(2x)`

B

`(1 + x^(2))/( 1 - x^(2))`

C

`(1 - x^(2))/(2x)`

D

`(1 - x^(2))/( 1 + x^(2)).`

Text Solution

Verified by Experts

The correct Answer is:
C
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