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Lesson: Trigonometric Ratios on the Unit Circle Glencoe • Algebra 2 • Precalculus • Ron Larson • Tenth Edition • Glencoe • Algebra 2 • Common Core • Glencoe • Precalculus • Common Core
MathematicsIn this lesson, we will learn how to use the fact that the quadrant where an angle lies determines the signs of its sine, cosine, and tangent and solve trigonometric equations.