(tan^(2)2 theta-tan^(2)theta)/(1-tan^(2)2 theta tan^(2)theta)=

Prove that (tan^(2)2theta-tan^(2)theta)/(1-tan^(2)2thetatan^(2)theta)=tan 3 theta tan theta .

Prove that (tan^(2)2theta-tan^(2)theta)/(1-tan^(2)2thetatan^(2)theta)=tan 3 theta tan theta .

Prove that (tan^(2)2theta-tan^(2)theta)/(1-tan^(2)2thetatan^(2)theta)=tan 3 theta tan theta .

(tan^(2)2theta-tan^(2)theta)/(1-tan^(2)2thetatan^(2)theta)=

Prove that: tan4 theta=(4tan theta(1-tan^(2)theta))/(1-tan^(2)theta+tan^(4)theta)

Prove that (tan^2 (2theta)-tan^2 theta)/(1-tan^2 (2theta) tan^2 theta)=tan (3theta)tan theta

tan4 theta=4tan theta(1-tan^(2)theta)/(1-6tan^(2)theta+tan^(4)theta)

If (2tan^(2)theta_(1)tan^(2)theta_(2)tan^(2)theta_(3)+tan^(2)theta_(1)tan^(2)theta_(2)+tan^(2)theta_(2)tan^(2)theta_(3)+tan^(2)theta_(3)tan^(2)theta_(1)=1 then which of the following relations hold good ?

The expression (tan4 theta+tan2 theta)(1-tan^(2)(3 theta)tan^(2)theta) is identical to