Problem 5.1.174
Let sin A = with A in QIII and find cot 2A
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Section 2.1. Recommended Problems (pg. 27): 1, 3, 6. Functions in the Real World • Function: rule associating the values of one quantity (dependent variable) with the values of another (independent variable); in other words, for every single value of the independent variable there is precisely one associated value for the dependent variable o Depicted in one/four ways: 1. Formulas/equations 2. Graphs 3. Tables 4. Words A. Representing Functions with Formulas and Equations • Think of this as “a relationship between two quantities that is given as a formula” • EXAMPLES: 2 o Formula for area of a circle: A = π r o
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Chapter 5.3, Problem 5.1.174 is Solved
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