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16 articles trouvés pour ce sujet.

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	Ses points de discontinuités est les irrationnelles		2002-01-08
		Un eleve pose la question : Je voudrait montrer qu'il n'existe pas de fonction de R--->R tels que ses points de discontinuités est les irrationnelles, en utilisant la methode de "baire". Claude Tardif lui répond.
	An equation with rational coefficients		2018-05-26
		Anagh pose la question : If x and y are rational number and (x+y) + (x - 2y)√2 = 2x -y + (x-y-1) √5 Then find the value of x and y. Penny Nom lui répond.
	Why are equivalent fractions equal? Part 2.		2016-11-22
		Anandmay pose la question : Hi! I saw one of your answered questions:Why are equivalent fractions equal? The same question I had for why i searched and ended up entering this wonderful site. The answer was so much experimental based.I mean,for example,it was explained how 3/4 was equal to 6/8 by dividing a unit into 4 equal parts and taking four of the parts,and then dividing the same unit into 8 equal parts and then taking 6 of them.The result was that both the taken parts were equal. (That is,3 out of 4 equal parts were equal to 6 of the 8 equal parts.) But,this was very much non-generalized and experimental-based result(proof). And we all know that in mathematics,we confirm some particular thing for all the numbers iff we generalize it. So,can you explain more clearly 'HOW' the 3 parts of the 4 equal parts and the 6 of the 8 equal parts of the unit equal(that is the same)?I don't want experimental proof.I want clear proof,and thus please give a generalized proof for all fractions and their equivalents. Thanks! Penny Nom lui répond.
	Rationals		2009-10-30
		Jawsh pose la question : I don't quite understand the whole idea of rationals. If you have 3Squareroot 49. Is that equal to 3Squareroot 7^2? Can you break it down with an example for me please. Robert Dawson lui répond.
	Non-terminating, non-repeating decimals		2008-08-03
		Peter pose la question : How do you take a random, non-terminating, non-repeating decimal into a fraction? Stephen La Rocque lui répond.
	Positive rational numbers		2007-05-22
		Rebecca pose la question : What is the definition of positive rationals/positive rational numbers? Stephen La Rocque lui répond.
	Some irrational numbers		2001-07-03
		Kellie pose la question : Is it possible to write pi as a fraction? Is it possible to write the square root of 2 as a fraction.. Explain why? Harley Weston lui répond.
	Dividing fractions		2001-05-09
		Rina pose la question : I just wanted to ask if you could help me in math. See I'm having a test soon and its on Dividing Fractions and I just don't get it. My math teacher says that I'll be just fine but I failed my math quiz. I went to ask eric but they could help me so they told me to go to you. So here I am asking you if you could help me. Penny Nom lui répond.
	The n-th place of pi		2001-02-27
		Andrew pose la question : I have always wondered; is it possible to find the value of an irrational number, such as (phi) at it's nth decimal place??? You would plug the decimal place into the formula and the value would be given at the specified decimal place. When we look at the expression { (sqr 5 + 1)/2 } we are in a sense visualising the number in it's entirety, so the formula may include elements of the above expression in some form. Claude Tardif lui répond.
	Rationals, irrationals and integers		2000-03-14
		Erin McKeon pose la question : Why does the letter J represent the set of integers, the letter Q represent a set of rational numbers and the letter P represent a set of irrational numbers? What do each of these letters stand for? Harley Weston lui répond.
	Turning Fractions into Decimals		1999-01-16
		Lynn pose la question : How do you do it step by step Jack LeSage lui répond.
	Terminating decimals		1998-11-16
		Debra Karr pose la question : A college student studying elementary education asked me a question that I could not think of the correct answer. How can you look at a fraction and tell if is a terminating or non terminating decimal? Jack LeSage and Penny Nom lui répond.
	Adding Fractions		1998-10-15
		Lindsay pose la question : please help me!!!! Harley Weston lui répond.
	Repeating Decimals		1998-10-01
		Chris Norton pose la question : Could you PLEASE give the formula to find out the number of digits in a repeating decimal before it repeats. I have been trying to get it for weeks from Math sites on the Internet. Can you please, please help me ? Chris Norton Chris Fisher and Penny Nom lui répond.
	Division by a fraction.		1997-11-21
		Roger Marchegiano pose la question : I am interested in a solution to the following extra credit problem for my son in Geometry. We have been unable to produce a satisfactory response: Show a geometric representation of the division of fractions algorithm, (When you divide fractions you multiply the numerator by the reciprocal of the denominator). Penny Nom lui répond.
	Repeating Decimals		1997-01-24
		Grant Reed pose la question : Is there a way to tell that the repeating decimal for 1/17 has no more than 16 repeating digits? Penny Nom lui répond.

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