" 7."quad (sin theta)/(1+cos theta)+(1+cos theta)/(sin theta)=2cosec theta

(sin theta)/(1+cos theta)+(1+cos theta)/(sin theta)=2cos ec theta

Prove that : (sin theta)/(1+cos theta) + (1+cos theta)/(sin theta)= 2 cosec theta .

(sin theta)/(cosec theta)+(cos theta)/(sec theta)=1

" 4."(sin theta)/(1+cos theta)+(1+cos theta)/(sin theta)=(2)/(sin theta)

Prove each of the following identities : (sin theta)/((1+ cos theta)) + ((1+ cos theta))/(sin theta) = 2 "cosec" theta

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

Prove that: ((1)/(cos theta)-(1)/(sin theta))(1+(sin theta)/(cos theta)+(cos theta)/(sin theta))=sec theta tan theta-cosec theta cot theta

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