1
1)2x=(-1)^(n+1)*π/6+πn
x=(-1)^n*π/12+πn/2,n∈z
2)x/3=(-1)^n*π/3+πn
x=(-1)^n*π+3πn,n∈z
3)3x-π/6=πn
3x=π/6+πn
x=π/18+πn/3,n∈z
4)x/2+π/4=-π/2+2πn
x/2=-3π/4+2πn
x=-3π/2+4πn,n∈z
2
1)2x=+-π/6+2πn
x=+-π/6+πn,n∈z
2)x/3=+-π/6+2πn
x=+-π/2+6πn,n∈z
3)3x-π/6=π/2+πn
3x=2π/3+πn
x=2π/9+πn/3,n∈z
4)x/2+π/4=π+2πn
x/2=3π/4+2πn
x=3π/2+4πn,n∈z
3
1)2x=-π/6+πn
x=-π/12+πn/2,n∈z
2)x/3=π/6+πn
x=π/2+3πn,n∈z
3)3x-π/6=πn
3x=π/6+πn
x=π/18+πn/3,n∈z
4)x/2+π/4=-π/4+πn
x/2=-π/2+πn
x=-π+2πn,n∈z
4
1)2x=2π/3+πn
x=π/3+πn/2,n∈z
2)x/3=π/3+πn
x=π+3πn,n∈z
3)3x-π/6=π/2+πn
3x=2π/3+πn
x=2π/9+πn/3,n∈z
4)x/2+π/4=3π/4+πn
x/2=π/2+πn
x=π+2πn,n∈z