Рівняння cos x = a (повторення)

x = arccos 0 + 2πk,  k ϵ Z

x = - arccos 0 + 2πn,  n ϵ Z

 x = π/2 + πk,  k ϵ Z;

x = arccos 0 + πk,  k ϵ Z;

∅

x = arccos 1 + 2πk,  k ϵ Z

x = - arccos 1 + 2πn,  n ϵ Z

x = 2πk,  k ϵ Z;

x = arccos 1 + πk,  k ϵ Z;

∅

x = arccos 1,2 + 2πk,  k ϵ Z

x = - arccos 1,2 + 2πn,  n ϵ Z

 x = π/2 + πk,  k ϵ Z;

x = arccos 1,2 + πk,  k ϵ Z;

∅

πk, де k∊Z

π

x∊⊘

 x∊R

x = π/3 + 2πn, n∈Z

 x = π/3 + 2/3πn, n∈Z

 x = 3π + 2πn, n∈Z

 x = π/3 + πn, n∈Z

x=π+πn, n∈Z

x=± π ∕ 4+2πn, n∈Z

x=πn, n∈Z

x= π ∕2 +πn, n∈Z

π/2+πk,k∊Z

±π/3+2πk,k∊Z

π/2+2πk,k∊Z

±π/3+πk,k∊Z

±3π/2+2πn,n∊Z

±2π/3+2πn,n∊Z

 ±π/3+2πn,n∊Z

 ±π/6+πn,n∊Z