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In Unit 6 we will cover trigonometry. This is a broad subject. We will include right triangle trigonometry, trigonometric ratios, extending the domain of the angles to include all real numbers by graphing standard position angles on the x-y plane and by considering co-terminal angles. We will learn the exact value of trig ratios for "nice angles" using reference angles and the 30-60-90 and 45-45-90 triangles. We will also learn how to find the trig ratios of any any by considering terminal sides of angles that pass through a given point on the x-y plane. We will learn how to solve triangles that are not right triangles using the Law of Sines and the Law of Cosines. Finally, we will learn two new functions: the sine function and the cosine function. We will model real-world behavior using these functions.