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

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

(1/(1+sin^2 theta)+1/(1+cosec^2 theta)) =?

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

sin^(4) theta + 2 cos^(2) theta (1 - (1)/( sec^(2) theta)) + cos ^(4) theta =

If 1/(sin^(2)theta)-1/(cos^(2) theta)-1/(tan^(2)theta)-1/(cot^(2)theta)-1/(sec^(2)theta)-1/(cosec^(2)theta)=-3 then find the value of theta .

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

Prove that (1+(1)/(tan^(2) theta ))(1+(1)/(cot^(2) theta ))=sec^(2) theta . "cosec"^(2) theta

sin^(4) theta + 2 sin^(2) theta (1-(1)/("cosec"^(2) theta ) )+ cos^(4) theta =

(sec^2theta-1)(cosec^2theta-1)

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