Answer
The terminal points (with corresponding increments of t values of $\displaystyle \frac{\pi}{4}$)
are highlighted on the image below
.
Work Step by Step
Sketch your own unit circle.
Enter the characteristic terminal points in quadrant I given in Table 1 (figure 6),
(here: red)
Using symmetry we find the terminal points of corresponding arc length increments
of t= $\displaystyle \frac{\pi}{6}, \frac{\pi}{4}, \frac{\pi}{3}$, and $\displaystyle \frac{\pi}{2}$.
