solve
`sin(pi-theta)=sintheta`

Solve: sin4theta=sintheta

Slove : sin9theta =sintheta

Solve 4sintheta sin2thetasin4theta=sin3theta

sintheta+sin7theta=sin4theta

Prove that:- (cos(theta/2)+sin(theta/2))^2=1+sintheta

If sintheta+sin5theta=sin3thetaand0lttheta((pi)/(2)) , what is the value of theta (in degrees) ?

Simplify: cos theta[{:(costheta,sintheta),(-sintheta,costheta):}]+sintheta[{:(sin theta ,-costheta),(costheta, sintheta):}]

Solve 2cos^(2)theta+sin theta<=2, where (pi)/(2)<=theta<=(3 pi)/(2)

costheta[{:(costheta,-sin theta),(sintheta,costheta):}]+sintheta[{:(sintheta,costheta),(-costheta,sintheta):}]=?