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2tanx/1 tan^2x=sin2x 255949-2 tan x 1 tan2 x sin 2x
Sin(2x) = (2tan(x)) / (1tan^2(x)) *** Start with RHS 2tanx/(1tan^2x) 2tanx/(sec^2x) 2(sinx/cosx)/(1 How do you prove tan (2x) = (2tan (x) ) ...
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