19. Which of the following pairs of integers is NOT congruent to modulo 9? 1 and 10 4 and -32 -2 and 16 - 3 and -24
19. Which of the following pairs of integers is NOT congruent to modulo 9? 1 and 10 4 and -32 -2 and 16 - 3 and -24
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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Transcribed Image Text:19. Which of the following pairs of integers is NOT congruent to modulo 9?
1 and 10
4 and -32
-2 and 16
- 3 and -24
20. What is the value of n such that (24 is congruent to 58 mod n) ?
17
13
- 34
13
21. The least positive residue or remainder of 12^20 (mod 25) is
8
3
2
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