Ответы и объяснения

  • Katyuha85
  • почетный грамотей
2013-02-14T10:29:39+00:00

а). = 2*π/6+3*π/3=π/3+π=4π/3

б). = (arccos(-0.5) + πsin(-π/2)) / (πcos(-π/2) + 2*arcsin(-0.5)) = (2π/3-π) / (2*(-π/6)) = (-π/3) / (-π/3) = 1