Please post any and all homework or other textbookstyle problems in one of the Homework & Coursework Questions...

Feb2313 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...

May2307 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...

May2307 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

May2307 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...

May2307 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...

May2207 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
...

May2207 11:17 PM
prasannapakkiam

3 
1,489 
:surprisedcan anyone derieve the taylor expansion of ln(1+z) ?
please help me.

May2207 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:...

May2207 10:59 AM
uart

5 
2,667 
Hello everybody,
I wanted to know the uses of such a function definition;
f(x) = 3*f(x1)  3*f(x2) + f(x3) ...

May2107 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.
...

May2107 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...

May2007 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...

May2007 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...

May1907 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...

May1907 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...

May1807 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....

May1807 04:26 AM
Edgardo

18 
2,544 
Does 0^0 equal one, or is it undefined?

May1807 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...

May1707 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...

May1707 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...

May1707 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...
...

May1607 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...

May1607 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.
...

May1507 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...

May1507 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:

May1407 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....

May1307 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...

May1307 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...

May1307 01:30 AM
Gib Z

6 
2,985 
Differentiate with respect to x
dy = 3x^2  5√x + 1/2x^2
dx
__________________________________________
I...

May1207 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...

May1107 11:05 PM
ahoy hoy

2 
1,331 
What simple operations, if any, precede or succeed the series ". . . exponentiation, multiplication, addition. . ."?

May1107 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...

May1107 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...

May1107 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...

May1107 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...

May1007 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...

May1007 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...

May1007 07:22 AM
HallsofIvy

1 
3,476 
In what regard might positive infinity be equivalent to negative infinity?

May1007 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. ...

May907 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...

May907 07:28 PM
Integral

6 
3,006 