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Jun1-13 07:36 PM Fredrik 
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General Math

- Math topics not applicable to the categories below. High-school Math
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Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions...
Feb23-13 09:23 AM
micromass
1 33,167
How would one go about solving sin(x) = x/2 I.e. the intersections of f(x)=sin(x) & g(x)=x/2 I can rigorously...
May23-07 05:03 PM
prasannapakkiam
8 1,345
I don't understand what this is supposed to mean when used with a set of numbers like: maximum of {x,y} Can...
May23-07 08:58 AM
robphy
5 982
Can you help me by giving me a method or solution integrating sinx/x between (0,infinty) please help me
May23-07 07:31 AM
Gib Z
7 1,829
If one was to sum a series by grouping each two terms would that be legtimate? i.e if you have an alternating...
May23-07 07:27 AM
Gib Z
3 1,237
Dear all, I have this interesting problem and have not settled it out. There is a pair of rabbits which reproduce...
May22-07 11:49 PM
prasannapakkiam
2 1,219
:rolleyes: does anyone know were to get math past papers for igcse level year 2006 will be really helpfull ...
May22-07 11:17 PM
prasannapakkiam
3 1,489
:surprisedcan anyone derieve the taylor expansion of ln(1+z) ? please help me.
May22-07 06:33 PM
mathman
1 751
Hi, I am to find a formula for the area of a regular polygon with a side "a". I just keep getting the wrong answer:...
May22-07 10:59 AM
uart
5 2,667
Hello everybody, I wanted to know the uses of such a function definition; f(x) = 3*f(x-1) - 3*f(x-2) + f(x-3) ...
May21-07 11:03 PM
truewt
5 1,418
I have below logical quiz but can not seem to find a reasonable answer. Any comment or help will be appriciated. ...
May21-07 01:35 PM
neutrino
5 1,979
I hate discontinuity in nature. When I graph the probabilities of dice rolls (say, 2 dice or 3 dice) I get integer...
May20-07 10:19 AM
robert Ihnot
6 1,166
I don't have a 3D graphing program, so I'm trying to figure out the graph of y=x^z on paper. y=x^2 forms a...
May20-07 08:11 AM
DaveC426913
16 2,512
Hi everyone,can someone help me out with this question ? A machine design student noted that the edge of a...
May19-07 07:41 PM
cristo
6 741
We have this final project for my math class and I was thinking of using geometeric series to get different shapes. I...
May19-07 05:29 AM
Edgardo
2 1,155
Chop a stick randomly into three pieces (by hitting twice with an axe). What is the probablity that these three pieces...
May18-07 09:04 AM
AlephZero
2 1,143
http://news.bbc.co.uk/1/hi/education/6589301.stm The sad thing is I don't think I can do it even if I try....
May18-07 04:26 AM
Edgardo
18 2,544
Does 0^0 equal one, or is it undefined?
May18-07 12:58 AM
ZioX
8 1,383
I've heard ancient greeks were able to solve algebra using geometry. For example, if you have a line between two...
May17-07 07:53 PM
Hurkyl
2 1,546
Four circular cardboard pieces each of radius 7cm are placed in such a way that each piece touches two other...
May17-07 12:50 PM
Werg22
2 1,275
Hi. this is probably a really dumb question but here goes. I know the radius of a circle, say 6 cm. i need to know...
May17-07 12:28 PM
blumfeld0
2 3,143
I'm sure everyone here has seen one of these things some time or another. Where you're given something like... ...
May16-07 05:47 PM
DyslexicHobo
0 2,407
Given an answer to the travelling salesman problem, how do you check it in polynomial time? It seems you must know the...
May16-07 02:57 AM
Moo Of Doom
11 3,381
Hi, I have a random grid, meaning that each cell consists of a random number. I need to evaluate the gradient. ...
May15-07 07:53 AM
makc
1 1,153
Hi pls read this its worth it.(assujme earth as a complete sphere) suppose i stand in india(place where equator...
May15-07 07:52 AM
Alkatran
6 1,222
It is a nice question. It has a few different kinds of proofes. So who is smart here? :wink:
May14-07 07:57 AM
uart
8 1,779
Hi all! Could anyone help telling me the way to find the remainder of the following divisions: 1....
May13-07 10:48 AM
pixel01
4 11,363
I want to approximate a very large number in a small way. I have looked at geometric progression (which I can just...
May13-07 10:18 AM
NeilNewport
15 2,393
I learnt the Binomial Theorem a while ago. But it is only now that I think about how it is only useful for powers that...
May13-07 01:30 AM
Gib Z
6 2,985
Differentiate with respect to x dy = 3x^2 - 5√x + 1/2x^2 dx __________________________________________ I...
May12-07 08:43 AM
Air
4 929
w=cos(theta) + isin(theta) where 0<theta<pi if the complex number w^2 + (5/w) -2 = 0 is purely imaginary, show that...
May11-07 11:05 PM
ahoy hoy
2 1,331
What simple operations, if any, precede or succeed the series ". . . exponentiation, multiplication, addition. . ."?
May11-07 06:21 PM
Loren Booda
5 2,488
This really is a question on complex analysis but is about Polchinski's introduction to worlsdheet physics, so I am...
May11-07 09:55 AM
nrqed
13 1,950
I think this is the perfect place to ask all of you if you could tell me some really intereseting places the following...
May11-07 07:03 AM
Ks. Jan Jenkins
1 1,893
well, it's been a while since i last posted in these forums... I got lots of Fourier optics problems to solve, and...
May11-07 05:11 AM
fargoth
0 4,893
OK - I'm working on Toricelli's Principle at the moment. That is, a tank where theres a small hole at the bottom and...
May10-07 09:09 AM
pixel01
2 2,412
I was unable to attend a class in which we learnt this, so any explanation would be appreciated (working and answer...
May10-07 08:55 AM
pixel01
1 826
If I have a rather large fraction such as 115/36 there is no obvious way of cancelling this, but is there a way of...
May10-07 07:22 AM
HallsofIvy
1 3,476
In what regard might positive infinity be equivalent to negative infinity?
May10-07 05:33 AM
matt grime
21 2,133
I an somewhat a layman, but i came across this problem. For any a & b, (b is not 0): § a/b - a/b =0. ...
May9-07 10:18 PM
Moo Of Doom
2 910
Hi all, First post here so 1) hello everyone, and 2) I have a problem that I am having trouble solving and was...
May9-07 07:28 PM
Integral
6 3,006

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