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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For questions 9 and 10 we are doing partial fraction decomposition. On the answer key, for #9 we broke up (x^2-4) and (x^2-1) further using the difference of square formula. Why didn't we use this formula in number 10? And instead used Cx+D? How do I know how to differentiate between the methods?
Transcribed Image Text:4
9.
x2-5x+4x
4x.
20x
10.
(x- 1)2 (x² +1)
Transcribed Image Text:8.5.5
4)(x - 5)
(x5x4) u=x
x(u²5u+4)
X-4
x-5
4x +1
8.5.6
(2x-1)(2x+ 1)
2x - 1
2x+ 1
x(u-4)(u-1)
(メーカ)(x-1)
I+3
8.5.7
(x -5)2
x- 5 (x-5)2
x5-5x3+4x
A
4
8.5.8
x(x – 1)²
I-1 (r-1)²
4.
A B
C
D E
8.5.9
2(x+1)(x-1)(x+2)(x - 2)
x+1
x-1
x+2
x-2
A
Ca+ D
+.
20x
8.5.10
NOTFactor
(x-1)2(x2 +1) -1 (x-1)²
す
B一二
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