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If tan20^(@) = lambda then show that (ta...

If `tan20^(@) = lambda` then show that `(tan 160^(@) -tan 110^(@))/(1+tan160^(@).tan110^(@)) = (1-lambda^2)/(2lambda)`.

A

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

B

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

C

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

D

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

Text Solution

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The correct Answer is:
D
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