1.

If tantheta+sintheta=mandtantheta-sintheta=n, then find the value of sqrt(mn).

Answer»

`(1)/(2)(m^(2)-n^(2))`
`2(m^(2)-n^(2))`
`(1)/(4)(m^(2)-n^(2))`
`(1)/(4)(m^(2)+n^(2))`

ANSWER :A::B::D


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