Question

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Answer 1

Respuesta:

cot(∝) + cot(x)

Explicación paso a paso:

$E = \frac{csc(180-\alpha)}{sec(90-\alpha)} +\frac{cos(180-x)}{sen(270-x)} \\E = \frac{csc(\alpha)}{sec(\alpha)} +\frac{-cos(x)}{-sen(x)}\\E = \frac{cos(\alpha)}{sen(\alpha)} +\frac{cos(x)}{sen(x)}\\E = cot(\alpha)+cot(x)$