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

If pi/2ltthetaltpi , then sqrt((1-sintheta)/(1+sintheta))+sqrt((1+sintheta)/(1-sintheta)) is equal to a. 2 sectheta b. -2sectheta c. sectheta d. -sectheta

Prove that sqrt((1+sintheta)/(1-sintheta))+sqrt((1-sintheta)/(1+sintheta))=2sectheta

sqrt((1+sintheta)/(1-sintheta))+sqrt((1-sintheta)/(1+sintheta)) is equal to

If cottheta = 7/8, evaluate . 1.) ((1+sintheta)(1-sintheta))/((1-costheta)(1+costheta))

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

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 cottheta=7/8 , evaluate: (i) ((1+sintheta)(1-sintheta))/((1+costheta)(1-costheta)) (ii) cot^2theta

(sintheta)/(1+costheta) is equal to (a) (1+costheta)/(sintheta) (b) (1-costheta)/(costheta) (c) (1-costheta)/(sintheta) (d) (1-sintheta)/(costheta)

If cottheta=15/8 , then Evaluate ((2+2sintheta)(1-sintheta))/((1+costheta)(2-2costheta))

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