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If tan40^o =lambda, then(tan140^o -tan13...

If `tan40^o =lambda`, then`(tan140^o -tan130^o )/(1+tan140^o tan130^o)`=

A

`(1-lambda^2)/lambda`

B

`(1+lambda^2)/lambda`

C

`10(lambda^2)/(2lambda)`

D

`(1-lamda^2 )/(2lambda)`

Text Solution

Verified by Experts

The correct Answer is:
D
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