Question

Csc/sec+cos/sen=2 cot identidades trigonometricas

Answer 1

$\frac{csc\,x}{sec\,x}+\frac{cos\,x}{sen\,x}=2\,cot\,x\\\\ \frac{cos\,x}{sen\,x}+\frac{cos\,x}{sen\,x}=2\,cot\,x\\\\ 2\frac{cos\,x}{sen\,x}=2\,cot\,x\\\\ 2\,cot\,x}=2\,cot\,x$