Learning how to sketch an angle and evaluate the six trig functions for the angle

The video tutorial covers the concept of fractions in relation to Pi, exploring the unit circle and angle rotation. It delves into evaluating trigonometric functions such as sine, cosine, and tangent, and further explains reciprocal functions like cosecant, secant, and cotangent. The tutorial emphasizes understanding these concepts through practical examples and calculations.

What is the point on the unit circle at π?

• (0, 1)

• (-1, 0)

• (1, 0)

• (0, -1)

Which quadrant is the point at 2π/3 located in?

• First

• Fourth

• Second

• Third

What is the X-coordinate of the point at 2π/3?

• -sqrt(3)/2

• sqrt(3)/2

• -1/2

• 1/2

Which trigonometric function represents the Y-coordinate?

• Secant

• Cosine

• Tangent

• Sine

How do you simplify a fraction divided by another fraction?

• Multiply by the reciprocal

• Subtract the fractions

• Divide by the reciprocal

• Add the fractions

What is the reciprocal of the sine function?

• Cotangent

• Cosecant

• Secant

• Tangent

Why do we rationalize the denominator in trigonometric functions?

• To simplify the expression

• To remove irrational numbers from the denominator

• To make the numerator larger

• To eliminate fractions