" (iii) "(cos A)/(1+sin A)+(1+sin A)/(cos A)=2sec A

(cos A)/(1+sin A)+(sin A)/(cos A)=sec A

Prove the following identity,where the angles invorved are acute angles for which the expressions are defined.(ii) (cos A)/(1+sin A)+(1+sin A)/(cos A)=2sec A

Prove the following identities, 0^(@) le theta le 90^(@) . (ii) (cos A)/(1+ sin A) + (1+sin A)/(cos A) = 2 sec A

Prove that (cos A)/(1+sin A)+(1+sin A)/(cos A)=2sec A

(1+cos A)/(sin A)+(sin A)/(1+cos A)=(2)/(sin A)

(cos A)/(1-sin A)=(1+cos A+sin A)/(1+cos A-sin A)

(cos A)/(1-sin A)=(1+cos A+sin A)/(1+cos A-sin A)

(cos A)/(1-sin A)=(1+cos A+sin A)/(1+cos A-sin A)

To prove '(cos A / 1 + sin A) + (1 + sin A / cos A) = 2sec A

(1)/(sec^(4)alpha)+(1)/(cos ec^(4)alpha)+(2)/(sec^(2)alpha+cos ec^(2)alpha)=? and (cos A)/(1+sin A)+(1+sin A)/(cos A)=?