Learn how to evaluate secant for an angle on the unit circle

The video tutorial explains how to find the secant of an angle using the unit circle. It begins by introducing the concept of secant and its relationship with cosine. The tutorial then discusses the importance of understanding coordinate points on the unit circle and relates these to triangle properties, emphasizing the hypotenuse. The video further explains the reciprocal relationship between cosine and secant, and demonstrates how to calculate secant from a given cosine value, specifically for the angle π/3.

What is the primary tool mentioned for solving the problem of finding the secant of π/3?

• Graphing Calculator

• Unit Circle

• Pythagorean Theorem

• Trigonometric Identities

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

• (1/2, sqrt(3)/2)

• (sqrt(3)/2, 1/2)

• (1, 0)

• (0, 1)

What is the value of the hypotenuse in the unit circle?

• sqrt(3)

• 2

• sqrt(2)

• 1

How is the cosine of π/3 related to the unit circle?

• It is the y-coordinate of the point.

• It is the angle in radians.

• It is the x-coordinate of the point.

• It is the hypotenuse of the triangle.

What is the secant of π/3?

• 1/2

• 2

• sqrt(3)/2

• 1