Ratios of inverse trigonometric values in degrees

Find the exact value of each of the following, giving your answers in degrees where angles appear.

1. \(\dfrac{\cos^{-1}\left(-\dfrac{1}{2}\right)}{\sin^{-1}\dfrac{1}{2}}\)
2. \(\dfrac{\tan^{-1}\left(-\sqrt{3}\right)}{\tan^{-1}1}\)
3. \(\dfrac{\sin^{-1}\left(-\dfrac{\sqrt{2}}{2}\right)}{\cos^{-1}0}\)