[" iii) "(sin theta+sec theta)^(2)+(cos theta+cosec theta)^(2)],[=(1+cosec theta sec theta)^(2)]

(sin theta+sec theta)^(2)+(cos theta+csc theta)^(2)=(1+cos ec theta sec theta)^(2)

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

Prove the following identity : (sin theta+ sec theta)^2 +(cos theta+ cosec theta)^2= (1+ sec theta cosec theta)^2 .

( sin theta + " cosec " theta )^(2) + ( cos theta + sec theta )^(2)=

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

(cosec theta)/(cosec theta-1)+(cosec theta)/(cosec theta+1)=2sec^2theta

Prove the following identity : (sin theta+ cos theta) (sec theta+ cosec theta) =2+ sec theta cosec theta .

Prove that (sin theta + "cosec" theta)^(2)+(cos theta + sec theta)^(2)=(7+ tan^(2) theta + cot^(2) theta).

The minimum value of (sin theta+csc theta)^(2)+(cos theta+sec theta)^(2)=

Prove that (sin theta + cos theta )( cosec theta - sec theta ) = cosec theta. Sec theta -2 tan theta