The integer n = 12700140x3243243 is missing the digit x. a) If n congruent to 3 (mod 9), then what is x ? Hint: Use the fact that 10 congruent to 1 (mod 9). b) If n congruent to 3 (mod 11), then what is x ? Hint: Use the fact that 10 congruent to –1 (mod 11).
The integer n = 12700140x3243243 is missing the digit x. a) If n congruent to 3 (mod 9), then what is x ? Hint: Use the fact that 10 congruent to 1 (mod 9). b) If n congruent to 3 (mod 11), then what is x ? Hint: Use the fact that 10 congruent to –1 (mod 11).
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.7: Introduction To Coding Theory (optional)
Problem 18E
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The integer n = 12700140x3243243 is missing the digit x.
a) If n congruent to 3 (mod 9), then what is x ? Hint: Use the fact that 10 congruent to 1 (mod 9).
b) If n congruent to 3 (mod 11), then what is x ? Hint: Use the fact that 10 congruent to –1 (mod 11).
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