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" 20.Prove that tan "4x=(stan x(-tan^(2)...

" 20.Prove that tan "4x=(stan x(-tan^(2)n))/(1-8tan pi x+tan^(4)x)

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Prove that: tan4x=(4tan x(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)

Prove that tan4x=(4tanx(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)

Prove that tan4x=(4tanx(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)

tan4x=(4tan x(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)

tan4x=(4tan x(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)

Prove that: tan4x=(4tanx(1-tan^2x))/(1-6tan^2x+tan^4x)

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

Prove that tan4x=(4tanx(1-tan^2x))/(1-6tan^2x+tan^4x)

tan4x = (4tanx (1-tan^2x))/(1-6tan^2x+tan^4x)

Prove the following: tan 4x =(4tan x (1-tan^2x))/(1-6 tan^2x + tan^4x)