" 3.Prove that "sec^(2)theta=1+tan^(2)theta

Prove that sec^(2)theta-1-tan^(2)theta=0

Prove that (sec^(2)theta-1)/(tan^(2)theta)=1

Prove sec^(2)theta=1+tan^(2)theta

Prove that- sec^2theta-1-tan^2theta=0

Prove that |(sec^(2)theta,tan^(2)theta,1),(tan^(2)theta,sec^(2)theta,-1),(38,38,2)|=0.

Prove that: sec^(4)theta-tan^(4)theta=sec^(2)theta+tan^(2)theta

Prove that : tan^(4)theta + tan^(2)theta = sec^(4)theta - sec^(2) theta

Prove that : tan^(4)theta + tan^(2)theta = sec^(4)theta - sec^(2) theta

Prove that tantheta(1+sec2theta)=tan2theta

Prove that (sin theta -cos theta+1 )/( sin theta + cos theta -1) =(1)/( sec theta -tan theta ) [use the identity sec ^(2) theta =1 +tan ^(2) theta ]