1.

If tan 20^@ =p , " then " (tan 160^@ - tan 110^(@))/(1+ tan 160^(@) tan 110^(@))=

Answer»

`(2P)/(1+P^(2))`
`(1-P^(2))/(2P)`
`(1-P^(2))/(2p)`
`(2P)/(1-P^(2))`

ANSWER :B


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