The video tutorial explains how to evaluate six trigonometric functions for an angle in the third quadrant. It begins with positioning the angle on the unit circle and identifying the corresponding coordinate points. The tutorial then covers calculating sine, cosine, and tangent values, followed by their reciprocal functions: cosecant, secant, and cotangent. The process includes rationalizing denominators and understanding reflections on the unit circle.

What is the primary purpose of finding the point where the angle intersects the unit circle?

• To calculate the area of the circle

• To find the length of the radius

• To determine the angle's degree measure

• To use the X and Y values for evaluating trigonometric functions

How is the circle divided to find the position of the angle -2π/3?

• Into sixths

• Into halves

• Into quarters

• Into thirds

Which quadrant is the angle -2π/3 located in?

• Second quadrant

• First quadrant

• Third quadrant

• Fourth quadrant

What is the value of the tangent function for the angle -2π/3?

• -1/2

• -sqrt 3

• sqrt 3

• 1/2

Why is it necessary to rationalize the denominator when evaluating trigonometric functions?

• To convert the fraction to a decimal

• To simplify the expression

• To eliminate the square root from the denominator

• To make the numerator a whole number