Question

Tanx=5
calcula :cot2x​

Answer 1

Respuesta:

$\cot 2x = - \frac{12}{5}$

Explicación paso a paso:

$\star \: \: \tan x = 5$

$\cot 2x = \frac{1 - {\tan}^{2} }{2 \tan x}$

$\cot 2x = \frac{1 - {5}^{2} }{2(5)}$

$\cot 2x = \frac{1 - 25}{10}$

$\cot 2x = \frac{ - 24}{10}$

$\cot 2x = - \frac{12}{5}$