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

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

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

Prove that :tan4 theta=(4tan theta-4tan^(3)theta)/(1-6tan^(2)theta+tan^(4)theta)

Prove that: tan4theta=(4t a ntheta(1-tan^2theta))/(1-6tan^2theta+tan^4theta)

Prove that : tan 4 theta= (4 tan theta(1-tan^2 theta)) /(1-6 tan^2 theta+ tan^4 theta) .

Prove the following : tan4theta = (4tantheta-4tan^3theta)/(1-6tan^2theta+tan^4theta)

Prove that : tan 4 theta = (4 tan theta - 4 tan^3 theta)/(1-6 tan^2 theta + tan^4 theta) .

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

given that tan(theta_(1)+theta_(2))=(tan theta_(1)+tan theta_(2))/(1-tan theta_(1)*tan theta_(2)) find (theta_(1)+theta_(2)) when tan theta_(1)=(1)/(2),tan theta_(2)=(1)/(3)