Question

4. Describe the process of memorizing pi, pi/2, 3pi/ 2, and 2pi on the Unit Circle.

Answer 1

To memorize the position of this points in the unit circle we have to remember that pi is equal to 180°. This means that pi is on the negative x-axis.

Once we memorize this we only need to remember that we have to move in 90 degrees.

Then pi/2 is in the positive y-axis.

3pi/2 ins in the negative y-axis.

2pi is in the positive x-axis.