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

Feb2313 09:23 AM
micromass

1 
37,233 
Hi
can anyone tell me what is tan 50 in fractions?
benzun

Aug2404 07:04 AM
chronon

4 
3,935 
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 
3,935 
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 
3,935 
I know that Euler is pronounced Oiler, and Galois is GaleWah. Can anyone try to write phonetically Stieltjes,...

Dec1108 02:48 PM
matticus

3 
3,934 
What's the general rule for constructing such graphs? I mean actually drawing it on paper.

Jun1609 10:23 AM
benorin

1 
3,934 
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 
3,930 
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 
3,928 
My differential geomtry professor once told me that with all his 30+ years experience in research in differential...

Feb2507 12:58 PM
andytoh

30 
3,927 
I have always been curious about the distance between prime numbers. I call the sequence above the frog numbers...

Jul512 04:14 PM
axelmorack

10 
3,927 
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 
3,926 
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 
3,925 
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 
3,923 
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 
3,921 
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 
3,921 
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 
3,920 
Basic rule is that:
a/b=c/d then, a+b/ab = c+d/cd
but suppose if we apply "componendo dividendo" just to the...

Oct2713 06:31 PM
Mezafo

7 
3,920 
Last night in a lecture my professor explained that some partial differential equations are used to observe events on...

Oct2610 03:23 PM
octohydra

0 
3,920 
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 
3,919 
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 
3,919 
Where can I find a free program that can numerically solve simple equations?
Thanks.

Apr308 03:13 PM
daniel_i_l

0 
3,918 
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 
3,916 
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 
3,916 
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 
3,916 
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 
3,915 
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 
3,913 
Let C be the curve: r(t) = (t, t^2, t^3) in R3.
Find the equation of the tangent line at P = (2,4,8).
In this...

Apr2805 03:12 AM
Data

6 
3,909 
Hi is there a general formula to find the inverse modulo of "a modulo n"...
i know its denoted as a^{1} and...

Oct1107 04:08 PM
robert Ihnot

8 
3,909 
Hi all,
I want to implement diffraction of waves by edges. I have a wedge with 2 faces oface and nface. I have...

May1109 09:19 AM
whitenight541

3 
3,909 
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 
3,906 
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 
3,906 
Does anyone know if the following attempt at a proof would qualify as a rough proof of the intermediate value theorem?...

Dec1508 03:23 PM
sutupidmath

15 
3,903 
(Hrm. There doesn't seem to be a good category for Algebraic Geometry; maybe Linear/Abstract Algebra?)
Ok, I'm in...

Jun2704 03:54 AM
matt grime

11 
3,899 
I am ready to pull the few remaining hairs out of my head with this formula. (This is not a homework questions by the...

Jan210 07:00 PM
Airesz

0 
3,899 
note; This is NOT a homework assignment please help me because i need to know this properly for a test i have tomorrow...

Apr2004 12:31 PM
matt grime

1 
3,898 
Hello. I am making a physics calculator, and I have to make a conversion Unit for the program.
I need to know this...

Apr1905 03:06 PM
The Bob

15 
3,897 
There are two functions f(t) and g(t); t is the independent variable.
The distance between the two functions will be...

Nov2107 01:56 PM
HallsofIvy

1 
3,894 
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 
3,894 
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 
3,893 
For reference, let \mathbb N^{\infty} denote the set of all \inftytuples of the form (n_{1}, n_{2}, \dots) with...

Aug3111 12:44 PM
micromass

48 
3,890 
so solving lim's can be tedious not because they are hard but because you have to continously keep writing lim x>a...

Oct1413 08:26 PM
HallsofIvy

9 
3,890 