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Prove 1/(1+sintheta)+1/(1-sintheta) = 2 ...

Prove `1/(1+sintheta)+1/(1-sintheta) = 2 sec^2 theta`

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Prove that 1/(1+sintheta)+1/(1-sintheta)=2sec^2theta .

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Prove the following 1/(1-sintheta) +1/(1+sintheta) =2sec^2theta

Prove the following trigonometric identities: cos^2theta+1/(1+cot^2theta)=1 (ii) 1/(1+sintheta)+1/(1-sintheta)=2sec^2theta

Show that: 1/(1+sintheta)+1/(1-sintheta)=2sec^2theta

Prove that: sqrt((1-sintheta)/(1+sintheta))= sec theta- tan theta when (-pi/2) < theta < pi/2 and -sec theta+tan theta when pi/2< theta< (3pi)/2

Prove that: sqrt((1-sintheta)/(1+sintheta))= sec theta- tan theta when (-pi/2) < theta < pi/2 and -sec theta+tan theta when pi/2< theta< (3pi)/2

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

Prove that: sqrt((1-sintheta)/(1+sintheta))=sectheta -tan theta .

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