
Concept explainers
a)
Toprove: All positive and negative powers
b)
Toprove: All integral powers of 2 is countable by listing its elements in a systematic and definite way.
c)
Toprove: Those natural numbers that leave a remainder of 1 when divide by 3 is countable by listing its elements in a systematic and definite way.
d)
Toprove:
e)
Toprove: Those positive rational numbers
f)
Toprove:
g)
Toprove:

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Chapter 3 Solutions
Discrete Mathematics with Graph Theory (Classic Version) (3rd Edition) (Pearson Modern Classics for Advanced Mathematics Series)
- Use 12.4.2 to determine whether the infinite series on the right side of equation 12.6.5, 12.6.6 and 12.6.7 converges for every real number x.arrow_forwarduse Cauchy Mean-Value Theorem to derive Corollary 12.6.2, and then derive 12.6.3arrow_forwardExplain the focus and reasons for establishment of 12.5.4arrow_forward
- Explain the focus and reasons for establishment of 12.5.3 about alternating series. and explain the reason why (sigma k=1 to infinite)(-1)k+1/k = 1/1 - 1/2 + 1/3 - 1/4 + .... converges.arrow_forwardExplain the key points and reasons for the establishment of 12.3.2(integral Test)arrow_forwardUse identity (1+x+x2+...+xn)*(1-x)=1-xn+1 to derive the result of 12.2.2. Please notice that identity doesn't work when x=1.arrow_forward
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