" 9."2sec^(-)theta-sec^(4)theta-2cosec^(2)theta+cosec^(4)theta=cot^(4)theta-tan^(4)theta

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

Prove the following: 2sec^2theta-sec^4theta-2cosec^2theta+cosec^4theta=cot^4theta-tan^4theta

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

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

Prove that 2sec^(2)theta-sec^(4)theta-2csc^(2)theta+csc^(4)theta=(1-tan^(8)theta)/(tan^(4)theta)

Prove that 2sec^2theta-sec^4theta-2 cosec^2theta+cosec^4theta=cot^4theta-tan^4theta

Prove that: 2sec^(2)theta-sec^(4)theta-2csc^(2)theta+csc^(4)theta=(1-tan^(8)theta)/(tan^(2)theta)

cosec^(4)theta+cot^(2)theta+cosec^(2)theta)"=

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

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