Question

Ayuda porfavor es para hoy :,c

a)0
b)1/2
c)1/3
d)1/4
e)1/5

Answer 1

$\frac{(1 + \cos(x))(1 - \cos(x) ) - \sin^{2} (x) }{ \sin(x)(1 - \cos(x) ) }$

$\frac{1 - \cos^{2} (x) - \sin^{2} (x) }{\sin(x)(1 - \cos(x) )}$

$\frac{0}{\sin(x)(1 - \cos(x) )}$

$0$