tan4x=(4tan x(1-tan^(2)x))/(1-6tan^(2)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)
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Prove that:tan4x=(4tanx(1-tan^2x))/(1-6tan^2x+tan^4x)
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tan4 theta=4tan theta(1-tan^(2)theta)/(1-6tan^(2)theta+tan^(4)theta)
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if (1+k)tan^(2)x-4tan x-1+k=0 has real roots tan x(1) and tan x(2) the...
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If tan^(-1)4=4tan^(-l)x, then x^(4)+x^(3)-6x^(2)-x+4 is equal to
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tan ^ (-1) (x + (2) / (x))-tan ^ (-1) ((4) / (x)) = tan ^ (-1) (x- (2)...
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(1) / (2) tan ((x) / (2)) + (1) / (4) ((tan x) / (4)) + ....... + (1) ...
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Prove that :tan 4 theta = (4 tan theta - 4 tan^3 theta)/(1-6 tan^2 the...
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tan 4x=(4tan x(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)
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