Determine the smallest positive and negative angle coterminal angle

The video tutorial explains coterminal angles using radians, focusing on the concept of negative direction and how to calculate both positive and negative angles. It covers the basics of radians, their relation to π, and how to simplify angle calculations by adding or subtracting 2π. The tutorial aims to clarify these concepts for students, emphasizing the importance of understanding radians and their application in angle measurement.

What is the equivalent of 2π in degrees?

• 270 degrees

• 360 degrees

• 180 degrees

• 90 degrees

How many fourths make up 2π?

• 8 fourths

• 10 fourths

• 6 fourths

• 4 fourths

What is the smallest negative coterminal angle for -9π/4?

• -π/4

• -3π/4

• -5π/4

• -7π/4

What is the smallest positive coterminal angle for -9π/4?

• 7π/4

• 3π/4

• π/4

• 5π/4

When adding 2π to -9π/4, what is the resulting angle?

• 3π/4

• 5π/4

• -π/4

• π/4