`(1-costheta)/(sintheta)=`

If alpha, beta are roots of x^2 sintheta-(costhetasintheta+1)x+costheta=0 where alphaltbeta and thetaepsilon(0,pi//4) then value of sum_(n=0)^oo(alpha^n +((-1)^n)/beta^n) (A) (1-costheta)/(sintheta)+(1-sintheta)/(costheta) (B) 1/(1+costheta)+1/(1-sintheta) (C) 1/(1-costheta)+1/(1-sintheta) (D) 1/(1-costheta) +1/(1+sintheta)

If alpha, beta are roots of x^2 sintheta-(costhetasintheta+1)x+xcostheta=0 where alphaltbeta and thetaepsilon(0,pi//4) then value of sum_(n=0)^oo(alpha^n +((-1)^n)/beta^n) (A) (1-costheta)/(sintheta)+(1-sintheta)/(costheta) (B) 1/(1+costheta)+1/(1-sintheta) (C) 1/(1-costheta)+1/(1-sintheta) (D) 1/(1-costheta)-1/(1+sintheta)

Prove: (costheta)/(1-sintheta)=(1+sintheta)/(costheta)

Prove: (costheta)/(1+sintheta)=(1-sintheta)/(costheta)

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

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

((1-sintheta+costheta)^(2))/((1+costheta)(1-sintheta))=?

Prove the following identities: (costheta)/(1-sintheta)+(costheta)/(1+sintheta)=2sectheta

Prove the following identities: (costheta)/(1-sintheta)+(costheta)/(1+sintheta)=2sectheta

If (costheta)/(1+sintheta)+(costheta)/(1-sintheta)=2sqrt(2) and theta is acute , then what is the value (in degrees ) of theta ?