Find the general solution of the euation `cos4x= cos2x` ?

Find the general solution of the equation sin2x+cos x=0 .

Find the general solution of the equation cos2x+3sin x=0

Find the general solution of the equation, sin3x+cos4x-4sin7x=cos10x+sin17x .

Find the general solution of the following equations cos 4x = cos 2x

Find the general solution of the following equations: cos 4 x = cos 2x

Find the general solution of the following equations cos 3x+cos x-cos 2x=0

The general solution of the equation 8 cos x cos 2x cos 4x=sin 6x/sinx is

Find the general solutions of the equation ( cos ""(x)/(4)-2 sin x )sin +(1+ sin""(x)/(4)- 2 cos x ) cos x =0

Find the general solutions of the equation ( cos ""(x)/(4)-2 sin x )sin +(1+ sin""(x)/(4)- 2 cos x ) cos x =0

Find the general solution of the equation sin^3x(1+cotx)+cos^3x(1+tanx)=cos2x .