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proofs: divisibility

label Mathematics
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if a,b and c are integers such that a divides b and b divides c, then a divides (b squared + c squared).

Oct 17th, 2017

b = ma, 

c= nb 

(b^2+c^2)/a = (m^2+(mn)^2)*a

so we have the result


Apr 6th, 2015

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Oct 17th, 2017
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Oct 17th, 2017
Oct 17th, 2017
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