Differentiate the function f (x) = 4 cos 3x - 3 sin 4x. %3D O -4sin 3x -3cos 4x O -12(sin 3x + cos 4x) O 12(sin 3x - cos 4x) O 4sin 3x - 3cos 4x

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 9&8?
0 7
Question 8
Differentiate the function f (x) = 4 cos 3x - 3 sin 4x.
%3D
O -4sin 3x -3cos 4x
O -12(sin 3x + cos 4x)
O 12(sin 3x - cos 4x)
4sin 3x - 3cos 4x
Transcribed Image Text:0 7 Question 8 Differentiate the function f (x) = 4 cos 3x - 3 sin 4x. %3D O -4sin 3x -3cos 4x O -12(sin 3x + cos 4x) O 12(sin 3x - cos 4x) 4sin 3x - 3cos 4x
O 4sin 3x-3cos 4x
Question 9
Find the derivative of y = x secT Vx at x = 2.
O 1.28
O 2.25
O 3.76
O 4.14
Transcribed Image Text:O 4sin 3x-3cos 4x Question 9 Find the derivative of y = x secT Vx at x = 2. O 1.28 O 2.25 O 3.76 O 4.14
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