(a) Use mathematical induction to prove that 1. 1! +2.2! +3-3!+..+n n! = (n+1)! – 1, %3D

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.2: Mathematical Induction
Problem 46E: Use generalized induction and Exercise 43 to prove that n22n for all integers n5. (In connection...
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(a) Use mathematical induction to prove that
1. 1! +2- 2! + 3. 3! +... +n- n! = (n+1)! – 1,
for all positive integers n.
(b) Suppose E = {0, 1}, and E* is the set of all bit strings. Give a recursive definition for
a function f: E* N which counts the number of Os in a bit string. (For example,
S(01001) = 3 and f(111) = 0.)
Transcribed Image Text:(a) Use mathematical induction to prove that 1. 1! +2- 2! + 3. 3! +... +n- n! = (n+1)! – 1, for all positive integers n. (b) Suppose E = {0, 1}, and E* is the set of all bit strings. Give a recursive definition for a function f: E* N which counts the number of Os in a bit string. (For example, S(01001) = 3 and f(111) = 0.)
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