and 8-stamp pac 4. For each positive integer n, let P(n) be the sentence that describes the following divisibility property: 5"-1 is divisible by 4. a. Write P(0). Is P(0) true? b. Write P(k). c. Write P(k+ 1). d. In a proof by mathematical induction that this di- visibility property holds for every integer n ≥ 0, what must be shown in the inductive step? ho the inequality

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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#5, Please explain in simplest detail

 

298
CHAPTE
by buying a collection of 5-stamp packages
and 8-stamp packages.
4. For each positive integer n, let P(n) be the sentence
that describes the following divisibility property:
5"-1 is divisible by 4.
a. Write P(0). Is P(0) true?
b. Write P(k).
c. Write P(k+1).
d. In a proof by mathematical induction that this di-
visibility property holds for every integer n ≥ 0,
what must be shown in the inductive step?
5. For each positive integer n, let P(n) be the inequality
2" < (n+1)!.
a. Write P(2). Is P(2) true?
b. Write P(k).
c. Write P(k+ 1).
d. In a proof by mathematical induction that this
inequality holds for every integer n ≥ 2, what
must be shown in the inductive step?
6. For each positive integer n, let P(n) be the sentence
Any checkerboard with dimensions 2 X 3n can
be completely covered with L-shaped trominoes.
a. Write P(1). Is P(1) true?
b. Write P(k).
c. Write P(k+ 1).
d. In a proof by mathematical induction that P(n)
is true for each integer n ≥ 1, what must be
shown in the inductive step?
7. For each positive integer n, let P(n) be the sentence
In any round-robin tournament involving n
teams, the teams can be labeled T₁, T2, T3,..., Tn
so that T; beats Ti+1 for every i = 1, 2,..., n-1.
a. Write P(2). Is P(2) true?
b. Write P(k).
c. Write P(k+1).
d. In a proof by mathematical induction that P(n)
is true for each integer n ≥ 2, what must be
shown in the inductive step?
Prove each statement in 8-23 by mathematical induction.
8. 5"-1 is divisible by 4, for every integer n ≥ 0.
9. 7-1 is divisible by 6, for each integer n ≥ 0.
10. n³-7n+3 is divisible by 3, for each integer n ≥ 0.
11. 32n
12. For
H 13. For
who
H 14. n³
15. n(n
16. 2"
17. 1-
18. 5"
2
19. n
20. 22
21. V
o n
22. 1
ar
23. a.
b
24. A
a
S
25. F
b
26.
27.
28.
S
Exer
leng
for
29.
Transcribed Image Text:298 CHAPTE by buying a collection of 5-stamp packages and 8-stamp packages. 4. For each positive integer n, let P(n) be the sentence that describes the following divisibility property: 5"-1 is divisible by 4. a. Write P(0). Is P(0) true? b. Write P(k). c. Write P(k+1). d. In a proof by mathematical induction that this di- visibility property holds for every integer n ≥ 0, what must be shown in the inductive step? 5. For each positive integer n, let P(n) be the inequality 2" < (n+1)!. a. Write P(2). Is P(2) true? b. Write P(k). c. Write P(k+ 1). d. In a proof by mathematical induction that this inequality holds for every integer n ≥ 2, what must be shown in the inductive step? 6. For each positive integer n, let P(n) be the sentence Any checkerboard with dimensions 2 X 3n can be completely covered with L-shaped trominoes. a. Write P(1). Is P(1) true? b. Write P(k). c. Write P(k+ 1). d. In a proof by mathematical induction that P(n) is true for each integer n ≥ 1, what must be shown in the inductive step? 7. For each positive integer n, let P(n) be the sentence In any round-robin tournament involving n teams, the teams can be labeled T₁, T2, T3,..., Tn so that T; beats Ti+1 for every i = 1, 2,..., n-1. a. Write P(2). Is P(2) true? b. Write P(k). c. Write P(k+1). d. In a proof by mathematical induction that P(n) is true for each integer n ≥ 2, what must be shown in the inductive step? Prove each statement in 8-23 by mathematical induction. 8. 5"-1 is divisible by 4, for every integer n ≥ 0. 9. 7-1 is divisible by 6, for each integer n ≥ 0. 10. n³-7n+3 is divisible by 3, for each integer n ≥ 0. 11. 32n 12. For H 13. For who H 14. n³ 15. n(n 16. 2" 17. 1- 18. 5" 2 19. n 20. 22 21. V o n 22. 1 ar 23. a. b 24. A a S 25. F b 26. 27. 28. S Exer leng for 29.
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