\[\boxed{\mathbf{530}\mathbf{.}}\]
\[= - \cos{90{^\circ}} - \frac{1}{2} - 1 =\]
\[= 0 - \frac{1}{2} - \frac{2}{2} = - \frac{3}{2}\]
\[= - \frac{\sqrt{2}}{2} - \frac{\sqrt{2}}{2} = - \sqrt{2}\]
\[= \frac{3}{2} - \frac{\sqrt{3}}{2} - 0 = \frac{3 - \sqrt{3}}{2}\]