Evaluating the six trigonometric functions with undefined values

The video tutorial explains how to evaluate all six trigonometric functions using the unit circle. It begins with an introduction to the concept and the importance of understanding the unit circle. The instructor outlines steps to evaluate trigonometric functions, emphasizing the need to identify the point on the unit circle corresponding to the angle. The video covers the calculation of sine, cosine, and tangent values, and explains the reciprocal functions: cosecant, secant, and cotangent. The tutorial highlights the importance of recognizing undefined values in trigonometric calculations.

What is the point on the unit circle for a 90-degree angle?

• (1, 0)

• (0, -1)

• (-1, 0)

• (0, 1)

Which of the following is the first step in evaluating trigonometric functions?

• Draw the angle

• Find the point on the unit circle

• Calculate the reciprocal functions

• Write out the trigonometric functions

What is the sine of an angle on the unit circle?

• The X coordinate

• The Y coordinate

• The hypotenuse

• The tangent

What should you write if the tangent of an angle is 1/0?

• One

• Infinity

• Zero

• Undefined

What is the secant of an angle if the X coordinate is 0?

• Zero

• One

• Infinity

• Undefined