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math

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Which two is true as i'm confused

A) 3+7 ß 10 mod 15
17 + 9 ß 4 mod 21
12 + 14 ß 0 mod 26
B) 4+11 ß 2 mod 13
9+7 ß 4 mod 12
13 + 13 ß 1 mod 25
C) 5+9 ß 4 mod 10
16 + 13 ß 3 mod 26
12 + 7 ß 6 mod 14
d)2+7 ß 9 mod 15
15 + 15 ß 6 mod 22
8+5 ß 2 mod 10
e)7+11 ß 1 mod 18
6+13 ß 9 mod 26
4+20 ß 2 mod 22
F )13 + 19 ß 6 mod 26
6+12 ß 4 mod 14
17+ 10 ß 9 mod 18

  • math - ,

    A)
    3+7 ≡ 10 mod 15
    3+7=10, 10÷15=0 remainder 10:TRUE.

    17 + 9 ≡ 4 mod 21
    17+9=26; 26÷21 Remainder=5: FALSE

    12 + 14 ≡ 0 mod 26
    12+14=26; 26÷26=1 remainder 0:TRUE

    You can attempt the rest, and post your answers for checking if you wish.

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