Use a calculator to approximate two values of Θ (0≤Θ<2Π) that satisfies the equation. Round to 3 decimal places.
sinΘ=-0.3214
It says that the answers are 5.956 and 3.469 but I don't know how to get there
sin(.32731) = 0.3214
since you want sinx = -0.3214, that means
x = 0.32731+pi
x = 2pi - 0.3271