Simplify `costheta/sintheta`

Simplify (1-costheta)/sintheta

Simplify (1-costheta)/sintheta

Simplify costheta[costhetasinthetasinthetacostheta]+sintheta[sintheta-costhetacosthetasintheta]

Simplify (sintheta+sectheta)^(2)+(costheta+cosectheta)^(2) .

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

Simplify : 1/( Costheta Sintheta ) + ( Costheta Sintheta )/( CosthetaSintheta )

If costheta+sintheta=sqrt(2)costheta ,then find the value of (costheta-sintheta)/(sintheta) .

if A= [{:(costheta,sintheta),(-sintheta,costheta):}], then A A^T =?

If costheta-sintheta=sqrt(2)costheta , then find the value of costheta+sintheta .