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# Trigonometry

Ratios in right triangles: Right triangles & trigonometryIntroduction to the trigonometric ratios: Right triangles & trigonometrySolving for a side in a right triangle using the trigonometric ratios: Right triangles & trigonometry

Solving for an angle in a right triangle using the trigonometric ratios: Right triangles & trigonometrySine and cosine of complementary angles: Right triangles & trigonometryModeling with right triangles: Right triangles & trigonometryThe reciprocal trigonometric ratios: Right triangles & trigonometry

Unit circle introduction: Trigonometric functionsRadians: Trigonometric functionsThe Pythagorean identity: Trigonometric functionsSpecial trigonometric values in the first quadrant: Trigonometric functionsTrigonometric values on the unit circle: Trigonometric functions

Graphs of sin(x), cos(x), and tan(x): Trigonometric functionsAmplitude, midline, and period: Trigonometric functionsTransforming sinusoidal graphs: Trigonometric functionsGraphing sinusoidal functions: Trigonometric functionsSinusoidal models: Trigonometric functionsLong live Tau: Trigonometric functions

Test your knowledge of the skills in this course. Have a test coming up? The Course challenge can help you understand what you need to review.