
Mathematics: A Discrete Introduction
3rd Edition
ISBN: 9780840049421
Author: Edward A. Scheinerman
Publisher: Cengage Learning
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Chapter 1, Problem 10ST
To determine
To show:That the given proposition is false and the reason for the invalid proof.
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A gardener has ten different potted plants, and they are spraying the plants with doses of
Tertizers. Plants can receive zero or more doses in a session. In the following, we count each
possible number of doses the ten plants can receive (the order of spraying in a session does
not matter).
(a) How many ways are there if there were twelve total doses of a single type of fertilizer?
(b) How many ways are there if there are six total doses of a single type of fertilizer, each
plant receives no more than one dose?
(c) How many ways are there if is was one dose of each of six types of fertilizers?
(d) How many ways are there if there are four doses of fertilizer #1 and eight doses of
fertilizer #2?
(e) How many ways are there if there are four doses of fertilizer #1 and eight doses of
fertilizer #2, and each plant receives no more than one dose of fertilizer #1?
(f) How many ways are there to do two sessions of spraying, where each plant receives at
most two doses total?
a) x(t) = rect(t − 3)
b) x(t) = −3t rect(t)
.
c) x(t) = 2te 3u1(t)
d) x(t) = e−2|t|
2. Sketch the magnitude and phase spectrum for the four signals in Problem (1).
Chapter 1 Solutions
Mathematics: A Discrete Introduction
Ch. 1.1 - Simplify the following algebraic expression:...Ch. 1.2 - Prob. 2.1ECh. 1.3 - Prob. 3.1ECh. 1.3 - Prob. 3.2ECh. 1.3 - Prob. 3.3ECh. 1.3 - Prob. 3.4ECh. 1.3 - Prob. 3.5ECh. 1.3 - Prob. 3.6ECh. 1.3 - Prob. 3.7ECh. 1.3 - Prob. 3.8E
Ch. 1.3 - Prob. 3.9ECh. 1.3 - Prob. 3.10ECh. 1.3 - Prob. 3.11ECh. 1.3 - Prob. 3.12ECh. 1.3 - Prob. 3.13ECh. 1.3 - Prob. 3.14ECh. 1.4 - Prob. 4.1ECh. 1.4 - Prob. 4.2ECh. 1.4 - Prob. 4.3ECh. 1.4 - Prob. 4.4ECh. 1.4 - Prob. 4.5ECh. 1.4 - Prob. 4.6ECh. 1.4 - Prob. 4.7ECh. 1.4 - Prob. 4.8ECh. 1.4 - Prob. 4.9ECh. 1.4 - Prob. 4.10ECh. 1.4 - Prob. 4.11ECh. 1.4 - Prob. 4.12ECh. 1.5 - Prove that the sum of two odd integers is even.Ch. 1.5 - Prove that the sum of an odd integer and an even...Ch. 1.5 - Prove that if n is an odd integer, then n is also...Ch. 1.5 - Prove that the product of two even integers is...Ch. 1.5 - Prove that the product of an even integer and an...Ch. 1.5 - Prove that the product of two odd integers is odd.Ch. 1.5 - Prove that the square of an odd integer is odd.Ch. 1.5 - Prove that the cube of an odd integer is odd.Ch. 1.5 - Suppose a, b, and c are integers. Prove that if ab...Ch. 1.5 - Suppose a, b, and c are integers. Prove that if...Ch. 1.5 - Suppose a, b, d, x, and y are integers. Prove that...Ch. 1.5 - Suppose a, b, c, and d are integers. Prove that if...Ch. 1.5 - Let x be an integer. Prove that x is odd if and...Ch. 1.5 - Let x be an integers. Prove that x is odd if and...Ch. 1.5 - Let x be an integer. Prove that 0x if and only if...Ch. 1.5 - Let a and b be integers. Prove that ab if and only...Ch. 1.5 - Let a be a number with a1. Prove that a number x...Ch. 1.5 - Prove that the difference between consecutive...Ch. 1.5 - Let a be a perfect square. Prove that a is the...Ch. 1.5 - For real numbers a and b, prove that if 0ab, then...Ch. 1.5 - Prove that the difference between distinct,...Ch. 1.5 - Prove that an integer is odd if and only if it is...Ch. 1.5 - Suppose you are asked to prove a statement of the...Ch. 1.5 - Suppose you are asked to prove a statement of the...Ch. 1.6 - Disprove: If a and b are integers with ab, then...Ch. 1.6 - Disprove: If a and b are nonnegative integers with...Ch. 1.6 - Disprove: If a, b, and c are positive integers...Ch. 1.6 - Disprove: If a, b, and c are positive integers,...Ch. 1.6 - Disprove: If p and q are prime, then p+q is...Ch. 1.6 - Disprove: If p is prime, then 2p1 is also prime.Ch. 1.6 - Prob. 6.7ECh. 1.6 - An integer is a palindrome if it reads the same...Ch. 1.6 - Prob. 6.9ECh. 1.6 - Prob. 6.10ECh. 1.6 - Prob. 6.11ECh. 1.6 - Prob. 6.12ECh. 1.6 - Prob. 6.13ECh. 1.7 - Prob. 7.1ECh. 1.7 - Prob. 7.2ECh. 1.7 - Prob. 7.3ECh. 1.7 - Prob. 7.4ECh. 1.7 - Prob. 7.5ECh. 1.7 - Prob. 7.6ECh. 1.7 - Prob. 7.7ECh. 1.7 - Prob. 7.8ECh. 1.7 - Prob. 7.9ECh. 1.7 - Prob. 7.10ECh. 1.7 - Prob. 7.11ECh. 1.7 - Prob. 7.12ECh. 1.7 - Prob. 7.13ECh. 1.7 - Prob. 7.14ECh. 1.7 - Prob. 7.15ECh. 1.7 - Prob. 7.16ECh. 1.7 - Prob. 7.17ECh. 1.7 - Prob. 7.18ECh. 1.7 - Prove that xy can be reexpressed in terms of just ...Ch. 1.7 - Prob. 7.20ECh. 1 - Prob. 1STCh. 1 - Prob. 2STCh. 1 - Prob. 3STCh. 1 - Prob. 4STCh. 1 - Prob. 5STCh. 1 - Prob. 6STCh. 1 - Prob. 7STCh. 1 - Prob. 8STCh. 1 - Prob. 9STCh. 1 - Prob. 10STCh. 1 - Prob. 11STCh. 1 - Prob. 12STCh. 1 - Prob. 13STCh. 1 - Prob. 14STCh. 1 - Prob. 15STCh. 1 - Prob. 16STCh. 1 - Prob. 17STCh. 1 - Prob. 18STCh. 1 - Prob. 19STCh. 1 - Prob. 20ST
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