Evaluate Sine given an angle where the terminal side is on the y axis

The video tutorial explains the concept of circles using Pi, focusing on coterminal angles and their properties. It emphasizes the redundancy of extra circles in calculations and simplifies the process by eliminating them. The tutorial also covers identifying coordinate points and sine values, providing a comprehensive understanding of these mathematical concepts.

What is the significance of 2π in the context of the unit circle?

• It represents half a circle.

• It represents a full circle.

• It represents three-quarters of a circle.

• It represents a quarter of a circle.

Why is it unnecessary to go around the circle multiple times when dealing with angles?

• Because it is redundant and doesn't change the angle's position.

• Because it is not allowed in trigonometry.

• Because it makes calculations more complex.

• Because it changes the angle's value.

What do coterminal angles share?

• The same sine value.

• The same quadrant.

• The same angle measure.

• The same initial and terminal sides.

How can you identify the sine of an angle using the unit circle?

• By calculating the angle's tangent.

• By using the angle's coordinates on the unit circle.

• By converting the angle to radians.

• By finding the angle's degree measure.

What is the coordinate point for the sine of 3π/2 on the unit circle?

• (1, 0)

• (0, 1)

• (0, -1)

• (-1, 0)