Find the number of solution of the equation `2(costheta+cos 2theta)+sin2theta(1+2costheta)=2sintheta` in `theta in [0,3pi]`

(sintheta+sin2theta)/(1+costheta+cos2theta)

(sintheta+sin2theta)/(1+costheta+cos2theta)

(sintheta+sin2theta)/(1+costheta+cos2theta) =

(sintheta+sin 2theta)/(1+costheta+cos2theta)=

Solve: costheta+sintheta=cost2theta+sin2theta

The solution of the equation cos^2theta-2costheta=4sintheta-sin2theta where theta in [0,pi] is

The number of solutions of the equation sin^(5)theta + 1/(sintheta) = 1/(costheta) +cos^(5)theta where theta int (0, pi/2) , is

The number of solutions of the equation sin^(5)theta + 1/(sintheta) = 1/(costheta) +cos^(5)theta where theta int (0, pi/2) , is

(sintheta+sin2theta)/(1+costheta+cos2theta)=?

Find the number of solution of the equation (2sintheta-sin3theta)/(1+costheta)+(3costheta+cos3theta)/(1-sintheta)=4sqrt(2)cos(theta+(pi)/(4)) in the interval (-10pi,8pi].