1.

If (tan 3 A)/(tan A) = k, (k ne 1) then

Answer»

`(cos A)/(cos 3 A) = (k^(2)-1)/(2K)`
`(sin 3A)/(sin A) = (2k)/(k-1)`
`k lt (1)/(3)`
`k gt 3`

Answer :B::C::D


Discussion

No Comment Found