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

Feb2313 09:23 AM
micromass

1 
38,224 
one (and perhaps the only) example is:2^4=4^2
what more examples are there?

Jul2103 02:05 PM
suffian

15 
3,963 
Is the result of a dot product of two vectors valid if the frame of reference unit vectors are not orthgonal?
...

Mar1109 02:13 PM
Dave in NZ

15 
3,962 
How do you define "topology" and "analysis"? I'm tempted to say that topology is the mathematics of...anything that...

Aug2111 03:30 AM
Fredrik

7 
3,960 
I have a door lever which has a 90 deg. bend. I need to calculate the length that this lever would have to be if it...

Oct2609 03:49 PM
camacru

3 
3,959 
I mean it's okay to take 2x3≠0 as a necessary condition, but I can't actually grasp the fact that we have to take the...

Jan2012 04:46 PM
Deveno

3 
3,958 
Hi all !
I came across an article (link: http://www.math.toronto.edu/mathnet/answers/infinity.html#2)
The...

Jul1504 12:01 PM
quartodeciman

33 
3,957 
Hello, I need your help please?
It might seem obvious to you but I can't seem to get my head around how to solve...

Aug1303 04:33 PM
suffian

11 
3,956 
Is this method good for analyzing a pulse?
Why is the averaging of the spectra good for noise cleaning?
What's the...

Jun1010 04:17 AM
mediocre

4 
3,955 
What's the general rule for constructing such graphs? I mean actually drawing it on paper.

Jun1609 10:23 AM
benorin

1 
3,952 
Okay so I have a couple of questions. Firstly, I'm a self taught math student. I'm teaching myself math and want to...

Mar1111 03:38 PM
Reagan0mics

9 
3,952 
Hey,
Not sure if this is in the right place, move if necessary.
So, I know about SUVATs, and nonconstant...

Jul609 01:23 AM
Mentallic

16 
3,951 
I'm aiming to calculate ln(x) numerically. I'm using the following procedure for this:
1) If x is greater or equal to...

Jan2611 04:40 PM
hotvette

12 
3,951 
What is the meaning of a pathological function?

Jan1707 01:03 PM
arildno

12 
3,946 
if sinh(y)=x, then, show that cosh(y)=sqrt(1+x^2)
I know how to prove but i have difficult in choosing the signs.
...

Sep2507 11:43 PM
cks

8 
3,946 
How is it different from the real differentiation and integration?
There are so many details that I am finding it...

Apr2205 06:29 AM
abia ubong

5 
3,942 
I was helping my friend with his math homework. He's in an intermediate algebra and is working on domains and ranges...

Oct2108 12:00 AM
DyslexicHobo

4 
3,942 
Can someone give me the definition of a line?

Nov1510 08:37 PM
chiro

36 
3,942 
Hi
can anyone tell me what is tan 50 in fractions?
benzun

Aug2404 07:04 AM
chronon

4 
3,939 
My differential geomtry professor once told me that with all his 30+ years experience in research in differential...

Feb2507 12:58 PM
andytoh

30 
3,938 
I have something like
A \rightarrow B \rightarrow C
I'd like to put function name's about the \rightarrow's,...

Aug1408 01:02 AM
dans595

3 
3,938 
A topological space is a set X together with T, a collection of subsets of X, satisfying the following axioms:
1.The...

May2509 12:05 AM
maze

9 
3,938 
so I've been doing review and I got stuck on two questions, I was wondering if anyone could help me out.
Any help...

Sep1310 12:49 AM
Kidphysics

3 
3,937 
I know that Euler is pronounced Oiler, and Galois is GaleWah. Can anyone try to write phonetically Stieltjes,...

Dec1108 02:48 PM
matticus

3 
3,937 
I love doing proofs, but hate doing computational questions. If I become very good with proofs but remain just soso...

Feb111 06:11 PM
mathwonk

21 
3,936 
definitely you can assume the premis and arrive at a truth and then consider your theorem truth only if the way from...

Jun2708 11:40 PM
DeaconJohn

54 
3,936 
Is it just me or is it the text didn't explain well enough about continuity? I totally don't understand it. Not only...

May3103 06:03 AM
PrudensOptimus

8 
3,935 
hi, I'm stuck and I cant seem to find a simple solution to questions regarding how to find the centre of mass of a...

May2610 12:07 PM
kolomsg

2 
3,935 
How one can find the solution to x^y+y^x=100 Where x,y belong to integers?

Jan904 01:19 AM
NateTG

5 
3,934 
Hello everyone, I do not understand how:: e raised to ln of x = x ?
this notation might make more sense:: e^ln...

May407 11:07 AM
uart

11 
3,934 
Hello, my problem is:
Let Q(t) = 8(0.87)^t
Find the annual and daily growth rate.
Can anyone tell me how...

Oct2904 01:36 AM
vsage

5 
3,927 
I have an upcoming Linear Algebra exam and my textbooks are really vague in defining certain concepts (and he didn't...

Mar2103 05:17 AM
Hurkyl

26 
3,926 
Ues the limit definition to prove that the stated limit is correct. \lim_{x>2} \frac{1}{x+1}=1. The limit def' is...

Sep1409 04:51 PM
John O' Meara

5 
3,926 
Hello All
I am having problems Verifying this identity
(COS A) / (1SIN A) = SEC A + TAN A
I can get the RHS...

Jun2805 07:09 AM
arildno

10 
3,925 
As we have seen some mathematical sign lately in this group, because I put you in the drawing of the general sign of...

Nov607 03:42 AM
Integral

37 
3,925 
Find the relative extrema of f(x)=3xx^2.
Normally you solve f'(x)=0 to find the critical points, in that case we...

Jan2410 06:18 AM
HallsofIvy

4 
3,925 
Hello, I got pointed to this forum by OfficeShreder. I have a question I've been puzzling myself over for a while.
...

Nov2106 12:30 AM
shmoe

8 
3,924 
I am a doctor with limited mathematics knowledge. I am trying to prove to my medical fraternity that for a given force...

May707 02:22 PM
light_bulb

1 
3,923 
is anyone able to recommend a book or a site for a highschool senior that explains how logarithmic tables are made and...

Jul1805 02:24 AM
pl_terranine

4 
3,921 
http://xs305.xs.to/xs305/06332/ss.gif
Hello all, how to prove the above equation
thanks a lot

Aug1506 09:16 AM
benorin

4 
3,920 
Given the system of equations in x and y:
2x3y=12
3x+ky=10
Could you choose k so the system had...

Jul1111 03:13 AM
kdubb22

3 
3,919 