[" sec "theta-tan theta],[" 7.(i) "(1+cos theta+sin theta)/(1+cos theta-sin theta)=(1+sin theta)/(cos theta)],[" (ii) "(sin theta+1-cos theta)/(sin theta-1+cos theta)=(1+sin theta)/(cos A)]

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

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

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

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

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

Prove each of the following identities : (i) (1+ cos theta + sin theta)/(1+ cos theta - sin theta) =(1+ sin theta)/(cos theta) (ii) (sin theta + 1- cos theta)/(cos theta - 1 + sin theta) = (1+ sin theta)/(cos theta)

(1 + sin theta-cos theta) / (1 + sin theta + cos theta)

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

((sin theta+cos theta)^(2)-1)/(sin theta*cos theta)

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