Arctg1+arsin√3/2+arccos(-1/2)

Question

Arctg1+arsin√3/2+arccos(-1/2)

Answer 1

Arctg1+arcsin√3/2+arccos(-1/2)=π/4+π/3+2π/3=π/4+π=π/4+4π/4=5π/4

Answer 2

Решаем все значения
=45+60+120=225