1.

If tan theta + sin theta = m and tan theta - sin theta = n, then

Answer»

`m^(2) - N^(2) = 4MN`
`m^(2) + n^(2) = 4mn`
`m^(2) - n^(2) = 4 sqrt(mn)`
`m^(2)-n^(2)=4sqrt(mn)`

Answer :D


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