Question

Помогите срочно решить уравнение sin(x/3+П/5)=-1

Answer 1

sin(x/3 + π/5) = -1
x/3 + π/5 = -π/2 + 2πn, n∈Z
x/3 = -π/2 - π/5 +2πn
x/3 = -7π/10 + 2πn
x=-21π/10 + 6πn, n∈Z
Ответ: х=-21π/10 +6πn, n∈Z.