Question

Sen(x) (1 + Ctg(x) ) = Sen(x) + Cos(x)
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Answer 1

Respuesta:

$\sin(x) + \sin(x) \cot(x) = \sin(x) + \cos(x)$

$\sin(x ) + \sin(x) \frac{ \cos(x) }{ \sin(x) } = \sin(x) + \cos(x)$

$\sin(x) + \cos(x) = \sin(x) + \cos(x)$