2(cos theta+sec theta)=5

Choose the correct answer in each of the following questions: If (cos theta + sec theta) =(5)/(2) " then " (cos^(2)theta + sec^(2)theta)=?

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

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

If cos theta + sec theta = 2 then cos^(n)theta+ sec^(n)theta is equal to ___

If cos theta + sec theta = 2 then cos^(n) theta + sec^(n) theta =

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

If cos theta + sec theta =2 , then sec^(2)theta - sin^(2)theta=

If cos theta + sec theta =2 , then sec^(2)theta - sin^(2)theta=

Prove that : (sin^(2)theta)/(cos theta)+cos theta=sec theta