Pré-cálculo Exemplos

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

Etapa 1

Reescreva $\csc (x)$ em termos de senos e cossenos.

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

Etapa 2

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

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