Sin -1 (-1/2) in radians

Question

Sin -1 (-1/2)

Answer 1

If θ = Sin^-1(-1/2), then sinθ = -1/2 and θ is between -π/2 and π/2

 

So, Sin^-1(-1/2) = -π/6

Answer 2

Since the sin inverse lies in first/ third quadrant

 

=-pi/6