Вычислить:
а) tg (arccos 1/2)
б) sin (3 arcsin √3/2)

а)tg (arccos 1/2) = tg60 =√3б)sin (3arcsin √3/2) = sin(3•60) = sin 180 = 0sin (3arcsin √3/2) = sin(3•120) = sin 360 = 0