Arccos(cos п/4) + arctg(-кроень из 3)

Question

Arccos(cos п/4) + arctg(-кроень из 3)

Answer 1

Arccos(√2/2)+arctg(-√3)

±π/4-π/3

π/4-π/3= -π/12

-π/4-π/3= -7π/12