Question

30 БАЛЛОВ!!!Решите 2 тригонометрических уравнение

Answer 1

25
cos(2x+π/3)=-1
2x+π/3=π+2πn
2x=2π/3+2πn
x=π/3+πn,n∈z
26
sin(3x-π/3)=-1
2x-π/3=-π/2+2πn
2x=5π/6+2πn
x=5π/12+πn,n∈z