`sintheta/costheta+costheta/sintheta=?`

Prove that : (1+sintheta)/(costheta)+(costheta)/(1+sintheta)=2sectheta

prove that- (sintheta+1-costheta)/(costheta-1+sintheta)=(1+sintheta)/costheta

(costheta*csctheta-sintheta*sectheta)/(costheta+sintheta)

What is sintheta/(1+costheta)+(1+costheta)/sintheta equal to ?

(sintheta+costheta)/(sintheta-costheta)+(sintheta-costheta)/(sintheta+costheta) =_____________.

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

Eliminate theta in the following (i) 2sintheta=x, 3costheta=y (ii) costheta + sintheta=x, costheta-sintheta=y

Prove that int_0^(pi/2)(costheta-sintheta)/(1+sintheta.costheta)d theta=0.

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

Evaluate costheta.costheta+sintheta.sintheta