16*2sec^(2)theta-sec^(4)theta-2cos ec^(2)theta+cos ec^(4)theta=cot^(4)theta-tan^(4)theta

Prove the following identities: 2sec^(2)theta-sec^(4)theta-2cos ec^(2)theta+cos ec^(4)theta=cot^(4)theta-tan^(4)theta

Show: 2sec^(2)theta-sec^(4)theta-2cos ec^(2)theta+cos ec^(4)theta=cot^(4)theta-tan^(4)theta

Prove the following identity: 2sec^2theta-sec^4theta-2cosec^2theta+cos e c^4theta=cot^4theta-tan^4theta

Prove the following identities: 2sec^2theta-sec^4theta-2cos e c^2theta+cosec^4 theta=cot^4theta-tan^4theta

2sec^2theta-sec^4theta-2cosec^2theta+cosec^4theta=cot^4theta-tan^4theta .

cot^(4)theta+cot^(2)theta=cos ec^(4)theta-cos ec^(2)theta

Prove the following identities: 2sec^(2)theta-sec^(4)theta-2cos ec^(2)theta=cot^(4)theta-tan^(4)theta

(cos ec^(2)theta-sec^(2)theta)/(cos ec^(2)theta+sec^(2)theta)=(3)/(4)

Prove :cos ec^(2)theta+sec^(2)theta=cos ec^(2)theta sec^(2)theta