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anonymous

  • 5 years ago

Find the product 4x2 (mod 5)

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  1. anonymous
    • 5 years ago
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    Do you know much about modular arithmetic?

  2. anonymous
    • 5 years ago
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    Because this question just pretty much relies on its definition (and none of the amazing theorems etc. based on it :( ). \[ \text{If }a \equiv b (\mod n) \text{ then } a = b + kn\] where k is some constant. But that is a little to complex; just divide (4*2) by 5 and the remainder is your answer.

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