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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Question 8
Transcribed Image Text:the identity
cos(A+B) cos(AB) = cos²A + cos²B - 1
8) Write the expression-3sinx + 4cosx in the form ksin(x + a) for 0 ≤ a < 2. Round a to three decimals.
9) Verify the identity
sin20
1-cos20
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