on the solution for the derivative n=2 it has (-1)d/dx[sin4x] = (-1)4cos4x = 4cos(4x+2pi/2). I am wondering from the 2nd part to 3rd, where does the negative out front go?
on the solution for the derivative n=2 it has (-1)d/dx[sin4x] = (-1)4cos4x = 4cos(4x+2pi/2). I am wondering from the 2nd part to 3rd, where does the negative out front go?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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On James Stewart calculus 8th edition, chapters 1-11 student solutions. Chapter 2 review questions, problems plus #7, on the solution for the derivative n=2 it has (-1)d/dx[sin4x] = (-1)4cos4x = 4cos(4x+2pi/2). I am wondering from the 2nd part to 3rd, where does the negative out front go?
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