Find a positive and negative coterminal angle for angle on the y axis

The video tutorial explains the concept of π and π/2, and introduces coterminal angles, which are angles that share the same initial and terminal sides. It demonstrates how to calculate coterminal angles by adding or subtracting 2π, and discusses finding both positive and negative coterminal angles. The tutorial emphasizes understanding these concepts in radians rather than degrees.

What does π represent in terms of a circle?

• Halfway around a circle

• A full circle

• A quarter of a circle

• Three-quarters of a circle

How can you find a coterminal angle?

• By multiplying by 2π

• By adding or subtracting π/2

• By adding or subtracting 2π

• By dividing by π

What is the result of adding 2π to π/2?

• 3π/2

• 5π/2

• π

• 2π

What is a negative coterminal angle of π/2?

• -π/2

• -3π/2

• -2π

• -π

What is the general method for finding coterminal angles?

• Dividing by 2π

• Multiplying by π

• Adding or subtracting 2π

• Adding or subtracting π