If cos α+cos β+cos γ=sin α +sin β +sin γ =0 then cos 3α+cos 3 � – InterviewSolution

1.	If cos α+cos β+cos γ=sin α +sin β +sin γ =0 then cos 3α+cos 3 β + cos 3 γ equals to
Answer» $I f c o s α + c o s β + c o s γ = s i n α + s i n β + s i n γ = 0 t h e n c o s 3 α + c o s 3 β + c o s 3 γ e q u a l s t o$

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