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Math

Indiana Math

Precalculus: Trigonometry: Triangles

TR.T.1

Mostly covered
Define and use the trigonometric ratios (sine, cosine, tangent, cotangent, secant, cosecant) in terms of angles of right triangles and the coordinates on the unit circle.

TR.T.2

Not covered
Solve real-world problems with and without technology that can be modeled using right triangles, including problems that can be modeled using trigonometric ratios. Interpret the solutions and determine whether the solutions are reasonable.
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TR.T.3

Not covered
Explain and use the relationship between the sine and cosine of complementary angles
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TR.T.4

Fully covered
Prove the Laws of Sines and Cosines.

TR.T.5

Fully covered
Understand and apply the Laws of Sines and Cosines to solve real-world and other mathematical problems involving right and non-right triangles.

TR.T.6

Not covered
Derive the formula A = 1/2 ab sin(C) for the area of a triangle by drawing an auxiliary line. Use the formula to find areas of triangles.
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