Key Terms
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9.1 Basic Functions
 
9.2 Cosecant, Secant, and Cotangent
 
9.3 Solving Right Triangles
 
9.4 Trigonometric Identities
 
9.5 Graphing Trigonometric Functions
 
9.6 The Unit Circle
 
 
9.7 Graphing in the Entire Coordinate Plane
 
9.8 Inverse Trigonometric Functions
 
9.9 Solving Non-Right Triangles
 
9.10 Key Terms
 
9.11 Review Questions
 
9.12 Explanations
 
Key Terms
SOHCAHTOA
Basic Trigonometric Identities
Pythagorean Identities
Double-Angle Identities
Half-Angle Identities
Sum and Difference Formulas
Law of Cosines
where a, b, and c are the lengths of the sides of a triangle and C is the measure of the angle opposite side c.
Law of Sines
where a, b, and c are the lengths of the sides of a triangle and A, B, and C are the measures of the angles opposite those sides.
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