Domain Definition and 743 Threads

diagram: http://img.photobucket.com/albums/v629/ussjt/math3.jpg A thin equilateral triangular block of the side length 1 unit has its face in the vertical xy-plane with vertex V at the origin. Under the influence of gravity, it will rotate about V until a side hits the x-axis floor (see...

I have a couple of questions regarding the representation of a signal in the frequency domain I wish someone could help me with.. 1-why is it when we represent a non-periodic signal in the frequency domain it is continuous while the frequency domain of a periodic signal is discrete ...

I know this is a physics forum but I've got a quick question about a Euchlidean domain: Assuming that 1 - \sqrt {-7} and 2 are irreduclible, explain why Z[-7] is not a euchlidean domain? This is a pure maths question and I've asked questions about other pure maths courses and got decent...

In the domain type as I see, they say About hosting service they say Is that cheap ? I only want to buy a domain and then build a homepage introducing about me, nothing more. Thank you

http://www.newsmax.com/archives/articles/2005/10/17/145458.shtml

Could someone find the domain, intercepts, asymptotes, critical numbers, local min and max, absolute min and max, concavity, and inflection points of the function: (2+x-x^2)/((x-1)^2) Thank you it would be much appreciated

I downloade a forum but how can i see my forum on my computer. I not register web host/ domain yet. I want to play with it on my computers first. Can u tell me how to do that, what should I download and where should I put my forums so I can see my forums as I want to see my forums on my computer...

I am having problems with finding the domain of the composition of f and g(fog) for example, f(x)=x+7 and g(x)=x^2+4, the fog(x)=x^2+11, but from there i don't know how to find the domain, please help

Find the domain of the vector functions, r(t), listed below a.) r(t) = <ln(6t), sqrt(t+14), 1/sqrt(16-t)> i don't extactly know how to approach this, can someone give me a hint or two

y=-2\tan (3x+\pi) +3 state the following period = \frac {\pi} {3} y-intercept=3 Range = {y: yER} Domain= {x: ?} Symmetry? Vertical Asymptotes? Zeros? Can someone please tell me how to figure out what is left there are so many zeroes and i can't read them off of my...

hi, the question I am working on is this: If f:A-->B and the range of f is uncountable, prove that the domain of f is uncountable. Intuitively this seems to be true. If the range is uncountable, then function has to map an uncountable number of elements from the domain to the range. I don't...

What is all this hubub about eminate domain and the Supreme Court? :rolleyes:

I don't know why there is such hatred against the approval of the dot-xxx domain. Personally I think that it is a great idea because the whole idea of domains is to categorize websites, right? Getting all adult content on this domain is another challenge but it's a good call.

Does a Quantum System know about an observer before the Observer can know about the Quantum System? Quantum domains are small, Macro Domains are larger,so when one looks from a Macro Domain to one that is smaller(Quantum) one first has to locate the Quantum System to be observed, then because...

I'm trying to prooduce a plot of a root locus for an open loop transfer function. The transfer function is in the z-domain, with a gain K. I've already solved for the charectoristic equation of the system by hand. But, how do I use Matlab to plot the root locus of a transfer function in...

A weird domain and range? anybody up for a challenge y=x^2-2x+1 / x^2-x-2 try it on the gfx calculator and check if this domain and range is right i wrote Domain ( -infinity, -1 ) union (-1,2) union ( 2, infinity) range (-infity, 0) union (-1 to infity) is there an easier way to...

can anyone help me find the natural domain and range of f(x) = 1 - log_3x *the whole equation is under a square root sign, its just a couldn't latex it

domain and range question! Hi, I have a quick domain and range question, I have placed my answer below the question. I'm having doubts that it is right! Can someone please help me verify it. Thanks in advance! _____ Let f(x)= x² + 2 and g(x) =√1-x²...

I'm having a bit of difficulty plotting y=\left( \frac{3}{2} \right) ^{1/3} \arcsin ^{2/3} x \qquad -1 < x < 1 I don't know how to work around the problem associated with the domain of \arcsin x. Is there any way to do it? Any help is highly appreciated.

what is the average size of a domain? and how are "permanent" magnets made? thanks, erin.

2-2\sin^2(\theta)=\cos (\theta) I need to solve this quadratic trig equation algebraically of the domain 0<=x<=2pi I know how to do that but in order to solve the trig functions have to be the same I'm having a little trouble how do I change the cos into sin? It's not cos^2 so we can't use...

How do you find the domain just by looking at the equation? ex1) x^2/ x^4+4x-5 2) t/√(t^2-5t+6) 3) √[2-√(4-x)]

y=logx4 state domain and range, x-intercept, vertical asymptote. I have never seen a question like this before. Please help me!

This is not a Bode plot question, but similar. I have data on the laplace transform of a tracer response at different times, "t". I want to plot the response against "s". Since the Laplace transform of t is 1/s^2, do I convert to "s" by s=(1/t)^.5?

I am asked to calculate the double integral of the function f(x,y) = (2x+3y)^2 = 4x^2 + 12xy + 9y^2 on the domain defined by a triangle whose summits(?) are at (-1,0), (0,1) and (1,0). I chose to integrate from left to right. So the bounds of my integral are \int_0^1 \int_{y-1}^{1-y}...

I was given the equation y=2(3^x)-1 and told to state the domain, range, x and y intercepts and asymptotes. I graphed the eqn and got the x-intercept to =-0.63 and the y-intercept=1 the vertical asymptote is the same as x-intercept so =-0.63 and the horizontal asymptote always equals 0...

I was given the equation y=2(3^x)-1 and was told state the domain, range, x-intercept(s) y-intercept(s) and asymptote(s) I graphed the equation and I think the x-intercept is -0.63 I subbed in 0 for the x value on the graphing calculator and got y-intercept=1 the vertical asymptote is the...

I bought the domain www.utoe.org threw web.com and I have no Idea how to redirect the url to the one where I have my site hosted? could someone help me.

I'm a little confused here. I have a function: f(x) = x^2 + 3 If the domain of the function is -3 <= x <= 3 I need to find the range... I think that the answer is 3 <= y <= 12... that can be found out by drawing the graph. But I want to find the range algebraically. It says in my...

In class today we were doing a problem where we were given the graph of f (the derivitive of F). The domain was -3<x < or = 8 f(8)=0 and f had changed from positive <8 to 0, indicating a probable relative max (the function looked like a sinusoid, but the points after 8 were not graphed...

This is my first encounter with this function. In the question at hand it's defined as A(x) = 1 + x^3/(2)(3) + x^6/(2)(3)(5)(6) + x^9/(2)(3)(5)(6)(8)(9) + ... and on like that to infinity. The question is to find the domain of this function. Here's what I have so far. The domain would mean...

Finding the domain is easy with a graphing calculator but what if I was to do it without one. Is there a way to do it? How would I find the domain of f(x)=(x-1)/(x^2+1)

If f(x)=x/(x-1) and g(x)=1/(x+3) what is the domain and range of (f.g)(x) and (f/g)(x)? Are the domains the same? I got: Domain of f is all x not equal to 1 or -3. The range is all real numbers. x/(x-1)(x+3) Domain of g is all x not equal to 1, but it can't be equal to -3 either because...

Two functions are said to be equal if they ahve the same domain and, for each value in the domain set, the function values are equal respectively. F = {(2,3),(3,4),(4,5) G = {(3,4),(4,5),(2,3) The domain sets are equal, and f(x) = g(x) for each corresponding value of the domain. Tow...

Find the domain? How would I go about finding the domain of: 15x^2 + 3x - sqrt2 (x) trip7

my previous calculus teacher stressed finding the domain of a composite function; he stressed more of finding which areas were not part of the function by means of three circles and saying the function didn't pass to the other circle unless it met the range of the other function. The textbook...

Questoin...I have allways done these by evaluating (F 0f G)(x) ...then finding the domain of G and then useing a graphing calculator to find the domain of the whole thing as a function. My question is how do you algebracially fine the domain of the function after you find the domain of G int the...

Good day to all the members on the forum site. I'm currently a Grade 12 student and I'll probably be needing help...not daily, but on days that I really need it. So I only have 1 question today: What is the environmental significance for the amount of fossil fuel use? If someone could...

If f(x) = square root of x and g(x) = x + 1, then: 1. What is f+g(x)? 2. Domain of f+g(x)? 3. What is f(g(x))? 4. What is the domain of f(g(x))? I put: 1. square root of x + x + 1 2. x >= 0 3. square root of x + 1 4. All real numbers? Thanks.

I wonder what went wrong here: Find the domain of f(x)=sqrt(1-sqrt(1-x2)) So of course the term under the radical must be greater than or equal to zero. For neatness I ignore the equal part. 1-sqrt(1-x2)>0 1>sqrt(1-x2) both left and right are positive, so 1>1-x2 x2>0 But it seems to...

ok guys, I need some help. I have been working on this problem for half an hour and I am stuck. Every answer I have came up with has been wrong. Here is the problem, find the domain of this function: F(x)=square root of x^2-49 Thanks for your help.

Would resultant photographs/videos be improved by equipping (still) cameras with a voice-activated shutter or (still/video) cameras with other voice-activated functions? Mine would be, as I shake and jerk indelicate mechanical shutters. Cheese!

EKG feedback "defibrillator" - public domain Imagine placed around the chest, with an array of EKG sensors, a band of fabric positioned for determining a three-dimensional cardiac potential. Now consider this elastic array not only to diagnose immediate specific pathologies, but also to treat...