Sujet: square root liste de sujets
nouvelle recherche

69 articles trouvés pour ce sujet.

		Page 1/1

	racine carrée		2000-11-24
		G. Bigorgne pose la question : Quel est donc l'origine de l'expression "racine carrée" ? Pourquoi avoir choisi cette expression ? Claude Tardif lui répond.
	Fractions with roots		2019-02-06
		DEBMALYA pose la question : 5/√2+√3 –1/√2–√3 Penny Nom lui répond.
	The square root 3 in exponential form		2018-05-09
		Paige pose la question : how do you write the square root 3 in exponential form Penny Nom lui répond.
	The square root of 6 is irrational		2017-10-02
		John pose la question : http://mathcentral.uregina.ca/QQ/database/QQ.09.06/sylvia1.html In the initial assumption of that proof, root 6 is assumed to be a/b where a and b have no common factors, but why does having a common factor make it irrational? Penny Nom lui répond.
	Square roots		2015-09-21
		mariana pose la question : I have read various articles on how to find the square root of irrational numbers and every article out there seems to be very confusing. i read you answer to LUKOW about irrational numbers and i am still quite confused. Say i want to find the square root of 326. i know that it is between 18 and 19 because 18 is the square root of 324 and 19 is the square root of 361 im just very confused about the rest of the process. Please help! ( if possible i would appreciate two examples. thanks) Penny Nom lui répond.
	A procedure for finding a square root		2015-08-27
		Tracey pose la question : Is there a method/process to determine the square root of a large number? For example, Tiananmen Square's area is 396 900m sq., what is the side length? Thank you, Tracey Harley Weston lui répond.
	A line segment of length root 5		2014-12-15
		angela pose la question : On the dot grid below, draw and label a line segment with length square root 5 the dot grid is 8 by 10 Penny Nom lui répond.
	Fractions and square roots		2013-12-04
		arionne pose la question : How do you solve a square root with improper fractions like 121 over 49 Penny Nom lui répond.
	Square root		2012-10-27
		Ashley pose la question : what does square root means Penny Nom lui répond.
	The square root of z=3+4i		2011-10-27
		dianah pose la question : how to find the square roots of complex number, z=3+4i Robert Dawson lui répond.
	A rational number		2011-05-17
		owais pose la question : according to definition of irrational number "a number which cannot be expressed in p/q form is called irrational number" square root of 2 is a irrational number but if i round off the digit correct to two decimal places so it becomes 1.41 and we can easily convert into p/q form so it is a rational number ??? Penny Nom lui répond.
	The square root of a large number		2010-01-19
		darlene pose la question : I understand the simple process, like 12 is the root to 144 but what happens when the number is 42563. Without a calculator how does a person figure this out during a timed test? Robert Dawson lui répond.
	Figure out the square root of something		2009-12-20
		eric pose la question : is there an ez equation to figure out the square root of something? Harley Weston 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.
	Inequalities Proof		2009-07-24
		ABOU pose la question : good morning.......a b c are real positive no zero......proof that sq root(2a/(a+b))+sq root(2b/(b+c))+sq root(2c/(c+a))inferior or equal 3 thank you Janice Cotcher lui répond.
	More on the square root of 0.75		2009-03-30
		Blaine pose la question : I read your response to How is the square root of 3/4 is greater than 3/4? What I'm hoping for is a way for my students to use their own experience and number intuition to be able to make sense of the issue. As soon as my kids see "if y is this and x is this then..." their little eyes glaze over. Unfortunately, I can't come up with a way myself. Thank you for your help. Penny Nom and stephen La Rocque lui répond.
	Simplify the square root of 125 x^2		2009-02-27
		Ashley pose la question : √125x² How do you simplify this equation assuming that variables can represent any real number? Robert Dawson lui répond.
	The square root of 164		2008-12-31
		Melissa pose la question : How do you simplify the square root of 164? Stephen La Rocque lui répond.
	Solving an Equation with a Square Root		2008-10-05
		Jonathan pose la question : the square root of 3x+18 = x 3x+18 are within the square root Victoria West lui répond.
	The square root of a fraction		2008-08-24
		Lauren pose la question : How do you solve square roots of fractions? Does the format change if it is either a proper or an improper fraction? Ex. the square root of 1/4 or the square roots of 80/25 Penny Nom lui répond.
	The square root of (18*n*34)		2008-07-01
		Peter pose la question : What is the least possible positive integer-value of n such that square root(18*n*34) is an integer? Penny Nom lui répond.
	How is the square root of 3/4 is greater than 3/4?		2008-04-22
		Serena pose la question : How is the square root of 3/4 is greater than 3/4? Penny Nom lui répond.
	The square root of 21 between what two numbers?		2008-04-03
		Danielle pose la question : The square root of 21 between what two numbers? Penny Nom lui répond.
	Simplifying square roots		2007-12-19
		Ciara pose la question : How would you calculate 2 to the square root of 8 plus 4 to the square root of 2 minus 5 to the square root of 2? Stephen La Rocque lui répond.
	1-4/square root 3		2007-09-12
		Prudence pose la question : How to solve this question? 1 - 4/√3 Penny Nom lui répond.
	Does every number have a square root?		2007-09-10
		Cheryl pose la question : Does every number have a square root? Harley Weston lui répond.
	Simplify (square root of)200		2007-08-28
		melissa pose la question : how do you simplify: (square root of)200 Penny Nom lui répond.
	Simplifying a square root		2007-05-24
		Leigh pose la question : I am trying to help my son. Simplify sq root 81 x to the 2nd power y to the 12th power. Stephen La Rocque lui répond.
	Finding square roots		2007-05-17
		Chandler pose la question : I would like an easy way to find the square root of a number. Gabriel Potter lui répond.
	What is the square root of 729 to the third power?		2007-04-25
		Tori pose la question : What is the square root of 729 to the third power? Penny Nom lui répond.
	5sqrt2+3		2007-01-07
		Mike pose la question : I don't understand why 5sqrt2+3 is the correct answer over 5sqrt 5 Penny Nom lui répond.
	Prove that square root of 3 is irrational.		2006-12-21
		Humera pose la question : Prove that square root of 3 is irrational. Stephen La Rocque lui répond.
	Help me prove that the square root of 6 is irrational		2006-09-23
		Sylvia pose la question : Could you please help me prove that the square root of 6 is irrational ? Stephen La Rocque lui répond.
	The square root of 4		2006-05-07
		MaryBeth pose la question : I am a high school teacher of Algebra. I was recently teaching square roots to my students and an interesting question arose. Our textbook seems to be inconsistent. I was hoping you might be able to give our department your opinion on who is correct as we are divided on the correct way to teach this. When you take the square root of a number, you get two answers, a positive root and a negative root, correct? Our book presents this as √4 = 2 and -√4 = -2 and ±√4 = ±2. Shouldn't it be taught as there are always two roots, the positive and the negative? It seems to me, there is really no reason to have to use the ± as there are always 2 roots, the positive and the negative. But if the negative sign is given then only the negative answer should be given? What's your take? Penny Nom lui répond.
	Finding square roots		2006-04-12
		Fehmida pose la question : I would like to know about tricks or formulas to do complicated square roots. ex. square root of 1029 Penny Nom and Steve La Rocque lui répond.
	Square roots		2006-03-07
		Diana pose la question : Find each square root Harley Weston lui répond.
	The square root of i		2005-11-30
		Kevin pose la question : If the square root of -1 is i, what is the square root of i? How can you find the log of a negative number? What is the log of -1? Claude Tardif lui répond.
	The square root of 2		2005-03-12
		Madhumita pose la question : From Pythagoras theorem we can draw square root 2 as a finite distance but it is irrational number which is endless. Explain how we can equate these two. Harley Weston lui répond.
	Square roots and inequalities		2004-10-25
		Waheed pose la question : Q1. What is the simplest way of finding a square root of any number using just a pen and paper? (I am asking this question because I browsed a few sites a didn't find any method that is simpler than the one I use. so I am just curious.) Q2. Is it possible that you take an equation and turn it into an inequality by performing same mathematical operations on both sides? Claude Tardif and Penny Nom lui répond.
	The distance formula		2004-09-04
		Joe pose la question : Why do we use square roots and squares in the distance formula Wholdnt they cancel each other out? Claude Tardif lui répond.
	square root 125 x 16		2004-04-23
		Mike pose la question : how do you simplify a square root of "- square root 125 x16" when x is a variable... i don't really get how to do this.... Penny Nom lui répond.
	root24 = 2 root6		2003-11-13
		Burke pose la question : I know that all algerbra can be represented visually, for example: Y=9x+3 is a line on a two dimentional plane. Could Math Central please send me a visual representation of the proccess of simplifying square root like root24 equals 2root6 Penny Nom lui répond.
	2/sqrt(2)		2003-05-07
		Mike pose la question : I was looking at an example of csc 45 deg where csc = hyp / opp = 1 / (sqrt(2) / 2) = 2 / sqrt(2) = sqrt(2) I just don't get this. If sqrt(2) = 1.4142145..... How can 2 / sqrt(2) = sqrt(2) as the example shows? Penny Nom lui répond.
	Constructing the square root of 3		2002-06-07
		Allan pose la question : I am a Math 7/8 teacher. I was wondering how you would show a student how to find the exact location of the square root of three on the number line using just a compass and a straight edge. Penny Nom lui répond.
	The square root of four		2002-04-13
		Frank pose la question : In a recent quiz we where asked the square root of four. The quizmaster gave the answer as not only 2 but also -2. Being pedantic I queried this. Although -2 squared is 4, does it follow that the root of 4 is -2 Can you enlighten us? Claude Tardif and Penny Nom lui répond.
	The square root of i		2002-03-14
		Arlene pose la question : what is the square root of i, if i=x+yi? what is the square root of 1-i? i'm getting problems like these in which I do not understand. Harley Weston lui répond.
	The square root of 2		2002-03-05
		Roger pose la question : Does two (2) have a square root or do the numbers just keep going? Are there any other numbers that behave like two when it comes to extracting the square root? Penny Nom lui répond.
	Double square roots		2002-02-17
		Ali pose la question : i have a question about how to do double square roots with variables and powers. example : v/"" v/"" 81y8 Harley Weston lui répond.
	2=the square root of (2 + the square root of (2 + the square root of (2 +...)))		2001-11-05
		Cynthia pose la question : justify algebreically, that: 2=the square root of 2 + the square root of 2 + the square root of 2 + the square root of 2 + the square root of 2 + and so on, ....... Penny Nom lui répond.
	Squares of negative numbers		2001-11-03
		Susana pose la question : I wanted to know if I can square a negative number..? Leeanne Boehm lui répond.
	The square root of 20		2001-09-18
		Dianna pose la question : How do you simplify a square root? My daughter tells me that the square root of 20 simplified is 5root4 Penny Nom lui répond.
	The square root of 21/168		2001-09-10
		A student pose la question : can you show me how to do this square root of 21/168 Penny Nom lui répond.
	Primes and square roots		2001-06-14
		Paul pose la question : I have a bit of a math problem. It has to do with determining if a very large number is a prime. One method entails dividing the number by every smaller prime number. If any divide into it, it's not a prime. This would be a big job if the number was something like 400 digits long. Another way I read about was to take the square root of the number and test all the primes less than its square root. The explanation went like this: "When a number is divided by another number that is greater than its square root, the result is a number smaller than the square root. For example, the square root of 36 is 6. Dividing 36 by 2, a smaller number than 6, gives 18, a number that is larger than the square root. To prove that 37 is prime it is only necessary to divide it by primes less than 6, since if it had a prime factor greater than 6, it would have to have one less than 6 as well." I understand the explanation, up to the last sentence. I fail to see the underlying logic. Why if a prime factor exists below the square does one have to exist above the square too? The number 40 can be divided by the prime 2, a number below its square root, but no other primes can do this above its square root. Have I missed something? What's the logic here? Claude Tardif and Penny Nom lui répond.
	Teaching square roots		2001-05-08
		Katie pose la question : My friend and I are doing a project. We have to teach our class about square roots. What is the easiest way to teach square roots to a class? Penny Nom lui répond.
	Finding roots		2001-02-01
		A student pose la question : My math problem is right now we are working on roots. I don't quite understand how to find the answer to the problems, i was wondering what is the easiest, and fastest way to find the answers to roots? Penny Nom and Claude Tardif lui répond.
	Square roots		2000-10-29
		Pamela pose la question : HERE GOES(I WILL USE Q AS THE SYMBOL FOR SQUARE ROOT): 8(Q2) - 5(Q2) + Q2 SECOND PROBELM IS (1 + Q2)2 LAST ONE 3/(2-Q5) Claude Tardif lui répond.
	A equation with a square root		2000-09-03
		Lea pose la question : Please help with 2 plus the square root ( and under it has x plus 1) = 6 Thank you Penny Nom lui répond.
	The square root of -1		2000-05-19
		Gary pose la question : i am not a student i am just some one that heard something and i can't be sure on the answer...my ? is what is the square root of -1? i think it is -1 but not sure can you let me know please thank you Harley Weston lui répond.
	The square root of 3		2000-04-04
		Mr. William pose la question : Prove that root 3 is irrational Harley Weston lui répond.
	Calculating a square root		1999-10-28
		Jonathan pose la question : What is the formula for calculating a square root? Penny Nom lui répond.
	Square roots without a calculator		1999-09-14
		Josh Weiner pose la question : Is there any way to find out a square root without a calculator? Harley Weston lui répond.
	The square root of two is never supposed to end		1999-03-06
		a wondering student pose la question : i am algebra II and am in the 9th grade. today we were talking about rational and irrational numbers. When we were talking about square roots my friend and i were talking and we thought of something. if you have a square with sides of length one then the diagonal of the square is the square root of 2. Now the square root of two is never supposed to end. But the diagonal of the square ends so therefore doesn't the square root of 2 end. our math teacher did not really answer our question because it was not in the lesson plan and not to many people would see where we were coming from. the answer is really bugging me and i would like to have your input. Jack LeSage and Penny Nom lui répond.
	Radicals		1998-09-15
		Lana Sabo pose la question : Question: fifteen times the square root of twenty, divided by the square root of 2. nine subtract the square root of forty-five, divided by 3. the square root of 18 plus the square root of 12, divided by the square root of 3. Harley Weston lui répond.
	The Range of a Function.		1997-09-12
		Karel Marek pose la question : Math Is Book 6 (Ebos/Tuck) question 5(b) gives a surprising answer at the back of the book.. The question is: Indicate the domain and range for this: y = sqr(x-9) (Square root of) The answer for the domain is x>=9 which is not surprisingly, but the range is y>=0, yER ... which I could understand if you were not allowed to transform the equation into x as the subject.. But all example on the facing page DO TRANSFORM the equation at will with x and/or y as the subject.. Can you explain this... ?? Chris Fisher lui répond.
	Square Root History		1997-08-29
		Carlos Montecel S. pose la question : I need find information over the "Square Root History", Could you help me? Harley Weston lui répond.
	Square Roots and Functions.		1997-04-23
		Ed pose la question : 1. In most texts the solution to a question such as square root x = -6 is x is undefined. Yet when teaching to solve xsquared = 36 x = +6 or -6 There appears to be a contradiction here. My question is when, where and why do we use the principle square root, not both + and -? This often occurs as the extraneous root in the solution of radical equations and in stating the domain and range of functions involving square roots. 2. Are there any simple rules for determining whether equations are functions without graphing them and doing a vertical line test? Harley Weston lui répond.
	Approximating roots.		1996-11-04
		Ben Dixon pose la question : How do you calculate a square root? eg the square root of 2. There is obviously some sort of successive approximation type algorithm for doing it to however many decimal places is required, but what is the algorithm? Harley Weston lui répond.
	Square roots		1996-03-16
		Terry King and John pose la question : We are just curious about how to manually calculate square roots. Harley Weston lui répond.
	Algorithms for roots		1996-02-22
		Charles Hewitt pose la question : I have seen an algorithm for finding the square root of numbers. Are there similar such algorithms for higher roots? Harley Weston lui répond.

		Page 1/1