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Home > INT3 > Chapter 10 > Lesson 10.2.1 > Problem 10-107


Use reference angles, the unit circle, and the fact that  to write three other true statements using cosine and angles that are multiples of . Homework Help ✎

Draw a unit circle diagram for the given angle.

Reflect the triangle in each of the 4 quadrants. Quadrant 2 is shown for you.

unit circle

unit circle