1.arcsin√2/2 2.arcsin(-1/2) 3.arccos(-1/2) 4.arctg√3 5.sin2x=√2/2 6.cos3x=1 7.tgx/2=1 8.ctg4x=0
1.arcsin√2/2=π/4 2.arcsin(-1/2)=-π/4 3.arccos(-1/2)=2π/3 4.arctg√3=π/3 5.sin2x=√2/2 2x=(-1)^n*π/4+πn x=(-1)^n*π/8+πn/2 6.cos3x=1 3x=2πn x=2πn/3 7.tgx/2=1 x/2=π/4+πn x=π/2+2πn 8.ctg4x=0 4x=π/2+πn x=π/8+πn/4