Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Transcribed Image Text:Find the exact value of sin 20, cos 20, and tan 20 using the double-angle formulas.
Cos 0 = 5
13
37
<0 < 2T
sin 20 =:
cos 20 =
tan 20 =
. 120
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