The value of `2sin^2theta+4cos(theta+alpha)sinalphasintheta+cos2(alpha+theta)`

Prove that :2sin^(2)theta+4cos(theta+alpha)sin alpha sin theta+cos2(alpha+theta) is independent of theta.

Prove that : 2 sin^2 theta + 4 cos (theta + alpha) sin alpha sin theta + cos 2 (alpha + theta) is independent of theta.

The expression nsin^(2) theta + 2 n cos( theta + alpha ) sin alpha sin theta + cos2(alpha + theta ) is independent of theta , the value of n is

The expression nsin^(2) theta + 2 n cos( theta + alpha ) sin alpha sin theta + cos2(alpha + theta ) is independent of theta , the value of n is

The expression nsin^(2) theta + 2 n cos( theta + alpha ) sin alpha sin theta + cos2(alpha + theta ) is independent of theta , the value of n is

The expression nsin^(2) theta + 2 n cos( theta + alpha ) sin alpha sin theta + cos2(alpha + theta ) is independent of theta , the value of n is

The expression nsin^(2) theta + 2 n cos( theta + alpha ) sin alpha sin theta + cos2(alpha + theta ) is independent of theta , the value of n is

Let m and M be the minimum and maximum values of 2sin^(2)theta+4cos(theta+alpha)sin theta sin alpha+cos2(theta+alpha) where 0<=theta<=(pi)/(4) and 0<=alpha<=(pi)/(4) then (m+M) equals to

Show that the value of cos^(2)theta+cos^(2)(theta+alpha)-2cosalphacosthetacos(theta+alpha) is independents of theta .

Let f(theta, alpha)= 2sin^2theta+4cos(theta+alpha)sintheta.sinalpha+cos2(theta+alpha) The value of f(pi/3,pi/4) is