[tex]\begin{gathered} t\text{ = }\frac{-3\pi}{2} \\ \pi=180^o \\ t\text{ = }\frac{-3\text{ x 180}}{2} \\ t\text{ = -270} \\ \\ \sin t\text{ = }\sin (-270)\text{ = 1} \\ co\sin e(t)\text{ = cos(-270) = 0} \\ \text{tangent t = tan(-270) = unknown or not possible} \end{gathered}[/tex]
