Sujet: limits liste de sujets
nouvelle recherche

28 articles trouvés pour ce sujet.

		Page 1/1

	A limit		2015-03-13
		arthur pose la question : sin(x-1)/x^+x-2 Penny Nom lui répond.
	A limit		2015-02-19
		genc pose la question : Lim (27x^3-1) / (3x-1) X-> 1/3 Harley Weston lui répond.
	1+2+4+8....= -1		2012-04-02
		Andy pose la question : In this minutephysics video, it's claimed that 1+2+4+8....= -1 Is this true, and if so, how? < href="http://www.youtube.com/watch?v=kIq5CZlg8Rg">http://www.youtube.com/watch?v=kIq5CZlg8Rg Robert Dawson lui répond.
	Limits and composition		2011-12-30
		Rahul pose la question : I want to know about limit proofs of composite functions. Like limit of log of a function equals log of limit of the function Penny Nom lui répond.
	The derivative using limits		2009-04-21
		Kirstin pose la question : I am trying to take the limit of f(x) = [f(x+h)-f(x)] / h If you try taking the limit by substituting the limiting value h=0, you get 0/0, which of course is not the right answer. You rewrite f(x+h)-f(x) so it has a factor of h in it, which you cancel with the h in the denominator before you substitute h=0. But I am not sure how to do this. Thanks. Robert Dawson lui répond.
	Infinite sets and infinite limits		2009-03-06
		Justin pose la question : Hello, I know I have asked a similar question before but I was just wondering if set theory applies to the lim x->0, y=1/x=infinity and if so, what type of infinity would it be? Thanks a lot for your help with this question! Regards, Justin Robert Dawson and Harley Weston lui répond.
	A trig limit		2009-02-05
		Samantha pose la question : lim x-> 0 ( ( r*cos(wt +h) + r*cos(wt) )/ h ) Where r & w are constants. Harley Weston lui répond.
	A trig limit		2009-02-05
		Kathy pose la question : Hi! I was just wondering how to do this question: lim 1-cos2x/xsinx as x approaches 0 Thanks, Kathy Penny Nom lui répond.
	A trig limit		2008-11-04
		Teri pose la question : Although I have this problem completely worked out in front of me I still cannot understand how it was done. The problem is: Find the limit. lim x->0 sin2x/tan7x. Harley Weston lui répond.
	A trig limit		2007-10-12
		Amanda pose la question : What is the limit, as x tends to zero, of: (1-cos(4x))/(xsin(x))? Thank you! ~Amanda Harley Weston lui répond.
	The tangent to y = x^3 at x = 0		2007-09-04
		Amit pose la question : consider the equation = x^3. The equation of tangent to this curve (which is smmetrical in Ist and IVth quadrant) at (0,0) is y=0, which is x-axis. but graphically one can visulize that x-axis intersects the curve, so how can it be the tangent to the curve. Please help. Harley Weston lui répond.
	Limits as x approaches a constant		2007-06-25
		Mac pose la question : can you please tell me what is the reason they say "denominator is a negative quantity" in the solution 11 and "denominator is a positive quantity" solution 10 ?? If i guess correctly, for solution 10, its because of x^2 in the denominator. Penny Nom lui répond.
	Find the sample size needed		2007-05-13
		Mini pose la question : Find the sample size needed to be 98% confident thata marketing survey on the proportion of shoppers who use the internet for holiday shopping is accurate within a margin of error of 0.02. Assume that the conditions for a binomial distribution are met, and that a current estimate for a sample proportion does not exist. Penny Nom lui répond.
	A trig limit		2007-03-11
		Lo pose la question : tan(2*x)/sin(3*x) Penny Nom lui répond.
	A limit involving trigonometry		2006-05-02
		Allie pose la question : My question is how do you solve. lim as t goes to 0 [sin squared *3t] / t squared? Penny Nom lui répond.
	1/infinity and 1/0		2006-03-04
		Evan pose la question : I was thinking the other day when i was in math class that when you divide 1 by say n you'll get 1/n. As the value of n increases the smaller the number you get. So if you divide 1/infinity would that equal zero? And if that is true then would 1/0=infinity be true also? Penny Nom lui répond.
	(x/1+x)^x		2005-10-23
		A student pose la question : LIMIT x-.->0 (x/1+x)x how to solve it. Penny Nom lui répond.
	The value of n*tan*(180/n) tends to pi		2005-07-11
		Daniel pose la question : I am 14 and i have been given a piece of maths coursework whereby a farmer has to fence off a piece of land as large as possible using 1000m of fence. I already know that the formula for working out the area of any shape of a 1000m perimeter = 5002/ n*tan*(180/n), however, after some research I have found out that as the number of sides (n), tends to infinity, the n*tan*(180/n) tends to pi. Why is this? Penny Nom lui répond.
	The limit as x approaches 3 of (sqrt(x+1)-2)/(x-3)		2005-04-14
		Abraham pose la question : What is the limit as x approaches 3 of (sqrt(x+1)-2)/(x-3) Penny lui répond.
	Limits and composite functions		2004-08-07
		Sue pose la question : I have two questions, one about a limit and the other about a composite function. If you could help me, I'd really appreciate it. 1. Find the limit: lim[x->0] (x*csc(x)) I converted csc(x) to cos(x)/sin(x), but I didn't know what to do after that. 2. f(g(x)) = ln(x^2 + 4), f(x) = ln(x^2) and g(x) > 0 for all real x, find g(x): I'm having trouble with this one because x^2 + 4 isn't a perfect square. --Sue Penny Nom lui répond.
	When is the limit of f(x) undefined?		2004-08-03
		Nicolasa pose la question : When is the limit of f(x) undefined? Penny Nom lui répond.
	Harmonic numbers		2003-03-12
		Becky pose la question : What can you tell me about the limit of harmonic numbers as it reaches infinity? Penny Nom lui répond.
	Asymptotes		2001-11-09
		Frank pose la question : given the function: f(x) = (x2) / (x-1) the correct answer to the limit of f(x) as x approaches infinity is: y = x+1 all math references point to this answer and the method they all use is long division of x-1 into x2 however if one were to multiply both the numerator and denominator by 1/x and then take the limit, one gets: y=x how can the descrepency between the two answers be explained? Chris Fisher and Penny Nom lui répond.
	L'Hospital's Rule		2000-07-19
		Dan Krymkowski pose la question : The limit of the following as x goes to infinity is 2*y. Y is a constant. lim 2*x*log(x/(x-y)) = 2*y Harley Weston lui répond.
	The limit of f(x)/x		2000-01-22
		Laurent Jullien pose la question : I would appreciate help to prove that a twice continuously differentiable convex function from R+ to R has the property that f(x)/x has a limit when x tends to infinity. Claude Tardif lui répond.
	l'Hospital's Rule		1999-10-18
		Yannick Gigandet pose la question : How can I solve these two limits : lim when n approches 1 of n[a1/n -1] lim when x approches 0 of (eax - ebx) / x Thanks for the answer! Harley Weston lui répond.
	Two limits		1999-10-02
		Jennifer pose la question : How do I find lim (1-cosx)/(x^2) as x-> 0 and lim (tan3x)/x as x->0 Harley Weston lui répond.
	A trig limit		1998-11-14
		Amy Atwell pose la question : what is the limit of of tanx / x + sin x as x approaches 0 Harley Weston lui répond.

		Page 1/1