14. sin(5π/6) + cos(4π/3) + tg(7π/4)

\(\sin\frac{5\pi}{6}=\frac12\), \(\cos\frac{4\pi}{3}=-\frac12\), \( g\frac{7\pi}{4}=-1\).

\(\frac12-\frac12-1=-1.\)

Ответ: \(-1\).