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math_proof
 3 years ago
prove 7 divides 2n1 = 3divides n
math_proof
 3 years ago
prove 7 divides 2n1 = 3divides n

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math_proof
 3 years ago
Best ResponseYou've already chosen the best response.0Prove tht \[\forall n \in \mathbb{N} , 7(2^n1) <=> 3n\]

math_proof
 3 years ago
Best ResponseYou've already chosen the best response.0a hint is to look at the multiplication table (for \[\mathbb{Z}/7\mathbb{Z}\] and computer powers of 2 mod 7, and to notice how they repeat

kajolc.2496
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1352059720286:dw

kajolc.2496
 3 years ago
Best ResponseYou've already chosen the best response.0oh yaa u are right!

math_proof
 3 years ago
Best ResponseYou've already chosen the best response.01. it is not a proof 2. 3 divides n means n/3 not 3/n :p
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