If `S_n=cos^ntheta+sin^n tehta` then find teh value of `3S_4-2S_6`

If S_n=cos^ntheta+sin^n theta then find teh value of 3S_4-2S_6

If S_n=cos^n theta+sin^n theta then find the value of 3S_4-2S_6

If S_n=cos^n theta+sin^n theta then find the value of 3S_4-2S_6

If p_n =cos^n theta+sin ^ntheta then the value of 2P_6-3P_4+1 will be

If S_(3n)=2S_n then find the value of S_(4n)/S_(2n)

If P_n=cos^ntheta+sin^ntheta, show that : 2P_6-3P_4+1=0 .

Let S_(n) be the sum of first n terms of an A.P. If S_(2n) = 5s_(n) , then find the value of S_(3n) : S_(2n) .