Simplify `(costheta/sintheta)^2`

Simplify (1-costheta)/sintheta

Simplify (1-costheta)/sintheta

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

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

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

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

If the angle theta is acute, then the angle between the pair of lines given by (costheta-sintheta)x^(2)+2(costheta)xy+(costheta+sintheta)y^(2)=0 is

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

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

(sintheta)/(1+costheta) + (1+costheta)/(sintheta) = 2 cosec theta