Consider integers from 1,000 to 9,999. Then, answer the following questions. a) How many even integers that all digits are distinct. b) How many integers that all digits are distinct and less than 8. c) How many integers that the summation of all digit is equal to 10. How many integers which are even palindromes? d) Example: 1221, 7227, and 1111 are odd palindromes. 2112 are even palindromes.
Consider integers from 1,000 to 9,999. Then, answer the following questions. a) How many even integers that all digits are distinct. b) How many integers that all digits are distinct and less than 8. c) How many integers that the summation of all digit is equal to 10. How many integers which are even palindromes? d) Example: 1221, 7227, and 1111 are odd palindromes. 2112 are even palindromes.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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