Q. 395.0( 1 Vote )

If a cos 3θ + 3 s

Answer :

Given:


a cos 3θ + 3 sin2 θ cos θ = m


sin 3θ + 3 a sin θ cos 2θ = n


Now adding both the equations we get,






Adding (i) and (ii) we get,






Hence, Proved.


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