Sujet: natural number liste de sujets
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6 articles trouvés pour ce sujet.

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	Three consecutive natural numbers		2017-06-11
		Anita pose la question : Three consecutive natural numbers are such that the square of the middle number exceeds the difference of the square of the other two by 60. Find the numbers. Penny Nom lui répond.
	1/a + 1/b + 1/c < 1		2010-02-01
		Mrityun pose la question : suppose a,b and c are natural numbers such that 1/a + 1/b + 1/c < 1. Prove that 1/a + 1/b + 1/c < = 41/42. Penny Nom and Claude Tardif lui répond.
	Properties of Natural Numbers		2009-07-24
		nazrul pose la question : If m,n,k are natural number how can I prove that (m+n)k=mk+nk. In the proof the properties of natural number should be used. Janice Cotcher lui répond.
	39 consecutive natural numbers		2003-08-19
		A student pose la question : Prove that among any 39 consecutive natural numbers it is always possible to find one whose sum of digits is divisible by 11. Penny Nom lui répond.
	Subsets of the natural numbers		2001-01-30
		Christina pose la question : How do I explain why the set of natural numbers (N) cannot be equivalent to one of its finite subsets? Penny Nom lui répond.
	Natural numbers		2000-04-12
		Sara pose la question : What is a natural number??? Penny Nom lui répond.

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