Simplify `sintheta/sin(theta/4)`

Simplify cos^2theta-sin^2theta

Simplify cos^8theta-sin^8theta

Simplify sin^8theta-cos^8theta

Simplify [(sin theta)/(cos theta)+(cos theta)/(sin theta)]^(2)

Solve: sin4theta=sintheta

Simplify: (sin8 theta cos theta-sin6 theta cos3 theta)/(cos2 theta cos theta-sin3 theta sin4 theta)

Slove : sin9theta =sintheta

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

[[ Simplify :cos thetacos theta,sin theta-sin theta,cos theta]]+sin theta[[sin theta,-cos thetacos theta,sin theta]]

Simplify: cos^(3)theta+sin^(3)theta=