Evaluate for a point using your six trig functions

The video tutorial covers the unit circle, focusing on key points and angles, including π/3, π/6, and 45 degrees. It explains how to handle negative angles, specifically -3π/2, and how to calculate trigonometric functions like sine, cosine, and tangent for these points. The tutorial emphasizes understanding the circle's division and the implications of negative direction on angle measurement.

What is the radius of the unit circle?

• 0

• 1

• π

• 2

Which of the following is a coordinate for a 45-degree angle on the unit circle?

• (√2/2, √2/2)

• (0, 1)

• (1, 0)

• (1/2, √3/2)

How do you express π in terms of a denominator of 2?

• 2π/2

• 4π/2

• π/2

• 3π/2

What is the significance of a negative angle on the unit circle?

• It halves the angle

• It doubles the angle

• It moves counterclockwise

• It moves clockwise

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

• (0, -1)

• (1, 0)

• (-1, 0)

• (0, 1)

What is the sine value for the point T at -3π/2?

• -1

• 0

• Undefined

• 1

Why is the tangent of -3π/2 undefined?

• X is zero

• Both X and Y are zero

• Neither X nor Y is zero

• Y is zero