`cos^3 alpha+cos^3 (120+alpha)+cos^3 (120-alpha)=3sqrt(3)/4`, then the general solution of `alpha` is

cos alpha+cos(120^(@)+alpha)+cos(120^(@)-alpha)=0

If 32 tan^8 theta =2 cos^2 alpha-3 cos alpha and 3cos2 theta =1, then the general value of alpha is

Prove that cos^2alpha+cos^2(120^@-alpha)+cos^2(120^@+alpha)=3/2

If 32 tan^(8) theta=2 cos^(2) alpha-3 cos alpha and 3 cos 2 theta=1 , then the general values of alpha is

If 32tan^(3)theta=2cos^(2)alpha-3cos alpha and 3cos2 theta=1 then the general value of alpha is

32tan^(8)theta=2cos^(2)alpha-3cos alpha and 3cos2 theta=1 then the general value of alpha is

If 32 tan^8 theta= 2 cos^2 alpha-3 cos alpha and 3 cos 2 theta=1 , then find the general value of alpha .

Prove that, cos^(3) alpha + cos^(3) (120^(@) + alpha) + cos^(3) (240^(@) + alpha) = 3/4 cos 3 alpha

If 0 lt alpha lt (pi)/(2) and sin alpha + cos alpha = sqrt2, then the value of cos 3 alpha is-

If 0ltalpha,betaltpi and cos alpha+cos beta -cos(alpha+beta)=(3)/(2) , then the value of sqrt3 sin alpha+cos alpha is equal to