6. Trigonometric Identities and More Equations
Introduction to Trigonometric Identities
4:59 minutesProblem 55b
Textbook Question
Textbook QuestionIn Exercises 55–58, use the given information to find the exact value of each of the following: α b. cos ------ 2 4 tan α = ------ , 180° < α < 270° 3
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