Evaluate your six trig functions for a point on the unit circle

The video tutorial explains how to find the six trigonometric functions for T = -π/2 using the unit circle. It begins with an introduction to the problem and the setup, followed by a detailed explanation of the unit circle and radians. The tutorial then explores the concept of moving in a negative direction on the circle and identifying the corresponding points. Finally, it demonstrates the calculation of the six trigonometric functions: sine, cosine, tangent, cosecant, secant, and cotangent, using the identified points.

What is the radius of the unit circle?

• 2π

• π

• 1

• 0

How is the point at T = -π/2 positioned on the unit circle?

• At (-1, 0)

• At (0, -1)

• At (0, 1)

• At (1, 0)

What is the sine value for T = -π/2?

• 0

• 1

• Undefined

• -1

Which trigonometric function is undefined at T = -π/2?

• Cosecant

• Cosine

• Sine

• Tangent

What is the value of cotangent at T = -π/2?

• 0

• 1

• -1

• Undefined