Prove that `(cos(90^(@)-theta))/(1+sin(90^(@)-theta))+(1+sin(90^(@)-theta))/(cos(90^(@)-theta))=2cosec theta`

Prove that:b. cos(90^@-theta)/(1+sin(90^@-theta))+(1+sin(90^@-theta))/cos(90^@-theta)=2cosectheta

Prove that sin (270^(@)-theta) sin (90^(@)-theta)-cos(270^(@)-theta) cos (90^(@)+theta)+1=0

sin(270^(@)-theta).sin(90^(@)-theta)-cos(270^(@)-theta).cos(90^(@)+theta)=

Prove that (cos theta cos(90^(@)-theta))/(cot(90^(@)-theta))=cos^(2)theta

Prove that sinthetacos(90^(@)-theta)=sin^(2)theta

Prove that : (cot(90^(@)-theta))/(tantheta)+("cosec"(90^(@)-theta)sintheta)/(tan(90^(@)-theta))=sec^(2)theta

Prove that (cos theta)/(sin(90^(@)+theta))+(sin(-theta))/(sin(180^(@)+theta))-(tan(90^(@)+theta))/(cot(theta))=3

Prove that (sin(90^(@)-theta))/(1+sintheta)+(costheta)/(1-cos(90^(@)-theta))=2sectheta

sin theta cos(90^(@)-theta)+cos theta sin(90^(@)-theta)

Simplify : (cos(-theta))/(sin (90^(@)+theta))