Question

Simplifique as expressões abaixo: sen²x/ sen x cos² x + sen³ x

Answer 1

$\displaystyle \frac{\sin^2(x)}{\sin(x)\cos(x)+\sin^3(x)}=\frac{\sin(x)\cdot(\sin(x))}{\sin(x)\cdot(\cos(x)+\sin^2(x)}=\frac{\sin(x)}{\cos(x)+\sin^2(x)}$