Question

Probar la siguiente Identidad de trigonometría:
$\frac{(sen(x)+tan(x))}{(cot(x)+csc(x))}$ = senx*tanx

Answer 1

si no podes verlo avisame

Answer 2

$\displaystyle E=\frac{\sin x+\tan x}{\cot x +\csc x}\\ \\ \\ E=\frac{\sin x+\tan x}{\dfrac{1}{\tan x} +\dfrac{1}{\sin x}}\\ \\ \\ E=\frac{\sin x+\tan x}{\dfrac{\sin x+\tan x}{\sin x\tan x} }\\ \\ \\ \boxed{E=\sin x\tan x}$