Simplify. \( \frac{\tan x \cos x}{\sin x} \) \( [?] \)

To simplify \( \frac{\tan x \cos x}{\sin x} \), we start by recalling that \( \tan x = \frac{\sin x}{\cos x} \). Substituting this into the expression gives us: \[ \frac{\frac{\sin x}{\cos x} \cos x}{\sin x} \] The \( \cos x \) in the numerator and denominator cancels out, leading to: \[ \frac{\sin x}{\sin x} = 1 \] So, the simplified expression is \( 1 \).