Вычислить \(arccos(-\frac{\sqrt2}{2})-arctg\frac{1}{\sqrt3}\)
\(-\frac{5\pi }{12}\)
\(\frac{5\pi }{12}\)
\(-\frac{7\pi }{12}\)
\(\frac{11\pi }{12}\)
\(\frac{7\pi }{12}\)