Answer to Question #259761 in Discrete Mathematics for rtf

Discrete Mathematics

Question #259761

What is 6 mod 9 + 11 mod 9 congruent to?

a) 8 mod 9

b) 6 mod 9

c) 7 mod 9

d) 0 mod 9

Expert's answer

"6 mod\\ 9 + 11 mod\\ 9\\equiv17mod\\ 9=8mod\\ 9"

Answer: a) 8 mod 9

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