Question

Cos(x/4+п:3)=-1 помогите пожалуйста

Answer 1

cos(x/4 + π/3) = -1

x/4 + π/3 = π + 2πn, n ∈ ℤ

x/4 = π - π/3 + 2πn, n ∈ ℤ

x/4 = 2π/3 + 2πn, n ∈ ℤ / • 4

x = 8π/3 + 8πn, n ∈ ℤ

Ответ: x = 8π/3 + 8πn, n ∈ ℤ