If the Terminal Point Determined By $\text { t }$ Is $\left( \frac { 12 } { 13 } , - \frac { 5 } { 13 } \right)$

Essay

If the terminal point determined by $\text { t }$ is $\left( \frac { 12 } { 13 } , - \frac { 5 } { 13 } \right)$ , find $\sin t$ , $\operatorname { cost }$ and $\tan t$ .