4. 3 + 5 + 7 + · · · + (2n + 1) = n(n + 2) ...

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.5: Mathematical Induction
Problem 42E
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Question
Use the principle of mathematical induction to show that the given statement is true for all natural numbers n 4)
lusion that a statement involvina natural numbers is true for all natural numbe
th Conditions I and II of the Principle of Mathematical Induction have be
demonstrates a statement for which only Condition I holds, and the stateme
ral numbers. Problem 29 demonstrates a statement for which only Conditio
ent is not true for any natural number.
to show that the given statement is true for all natural numbers n.
2. 1 + 5 + 9 + ·
+ (4n – 3) = n(2n – 1)
...
4. 3 + 5 + 7 + + (2n + 1) = n(n + 2)
6. 1 + 4 + 7 + . . · + (3n – 2) = n(3n – 1)
+ 3"-1
1
(3"- 1)
8. 1 + 3 +32 + ..
10. 1 + 5 + 52 + .
+ 5n-1
(5" - 1)
..
= -
1
1
1
1
12.
1.3
+ ..
3.5
5 7
(2n – 1) (2n + 1)
2n
Transcribed Image Text:lusion that a statement involvina natural numbers is true for all natural numbe th Conditions I and II of the Principle of Mathematical Induction have be demonstrates a statement for which only Condition I holds, and the stateme ral numbers. Problem 29 demonstrates a statement for which only Conditio ent is not true for any natural number. to show that the given statement is true for all natural numbers n. 2. 1 + 5 + 9 + · + (4n – 3) = n(2n – 1) ... 4. 3 + 5 + 7 + + (2n + 1) = n(n + 2) 6. 1 + 4 + 7 + . . · + (3n – 2) = n(3n – 1) + 3"-1 1 (3"- 1) 8. 1 + 3 +32 + .. 10. 1 + 5 + 52 + . + 5n-1 (5" - 1) .. = - 1 1 1 1 12. 1.3 + .. 3.5 5 7 (2n – 1) (2n + 1) 2n
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