Question
Find (a) the reference number for each value of t, and (b) the terminal point determined by t.$$t=-\frac{2 \pi}{3}$$
Step 1
The reference number $\overline{t}$ is the acute angle that t makes with the x-axis. Since t is negative, it means we are moving in the clockwise direction. The reference number is always positive and less than or equal to $\pi/2$. Show more…
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