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If $tan x = 0.3$ $tan x = 0.3$ , then how do you find tan 2x?

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bp · Don't Memorise

Apr 16, 2015

tan 2x = $\frac{6}{91}$ $6/91$

tan2x = $\frac{2 tan x}{1 - {tan}^{2} x}$ $(2tanx) /(1-tan^2 x)$

= $\frac{0.6}{1 - 0.09}$ $0.6/(1-0.09)$

= $\frac{0.6}{0.91}$ $0.6/0.91$
= $\frac{60}{91}$ $60/91$

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