Suppose That the Terminal Point Determined By $\text { t }$

Suppose that the terminal point determined by $\text { t }$ is the point $\left( \frac { 5 } { 13 } , \frac { 12 } { 13 } \right)$ on the unit circle. Find the terminal point determined by
(a) $\pi + t$ ,
(b) $- t$ ,
(c) $2 \pi - t$ ,
(d) $t - \pi$ .