1) arcsin(-1/2) = -π/6 or -30 degrees2) arccos(-1/2) = 2π/3 or 120 degrees3) arcsin(-√2/2) = -π/4 or -45 degrees4) arccos(-√2/2) = 3π/4 or 135 degrees
1) arcsin(-1/2) = -π/6 or -30 degrees
2) arccos(-1/2) = 2π/3 or 120 degrees
3) arcsin(-√2/2) = -π/4 or -45 degrees
4) arccos(-√2/2) = 3π/4 or 135 degrees