Question

Помогите решить одну задачу
$\frac{3}{43\pi} (5arcctg(-1)+arcsin\frac{1}{2}+arctg(-\sqrt{3}))$

Answer 1

    3/43π(5arccctg(-1) + arcsin ¹/₂ + arcctg(-√3)) = 
= 3/43π(5· 3π/4 + π/6 + (- π/3)) =
= 3/43π · (15π/4 + π/6 - π/3) =
= 3/43π · (45π/12 + 2π/12 - 4π/12) =
= 3/43π · 43π/12 = 3/12 = 1/4 = 0,25

Смотрим таблицу ниже.