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General Math

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Common math questions, quality answers.
T 10:02 AM Greg Bernhardt 
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Test your skills. Math challenges will be posted at least once a week. Suggestions for problems are welcomed. Brought to you by Office_Shredder.
Jul22-14 04:33 PM pasmith 
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Jan16-12 Greg Bernhardt
Please post any and all homework or other textbook-style problems in one of the Homework & Coursework Questions...
Feb23-13 09:23 AM
1 37,071
\sum_{i=1}^{n} i is the sum of all numbers between 1 and n. I'm trying to find one for odd numbers where you need...
Feb29-12 12:54 PM
8 20,090
Im just wandering what is the longest equation in mathematics?
Jun22-03 10:49 AM
17 20,078
Good time people Is there any way other than dividing the number from 2 to its half to find all of its divisors?...
Feb11-09 02:14 PM
9 20,007
what is that latex font that screams "professional looking"? I am using math-type + power point's beamer-template...
Oct20-10 03:42 PM
6 19,990
How can you represent the largest # that is less than 1?
Apr27-11 09:47 AM
97 19,933
I was looking around a little bit for an algorithm that would compute a complex number to the nth power. Can...
Jul17-08 05:49 AM
7 19,907
I got this algebra problem that I have been trying to get around but the answer I get is always different from the...
Mar22-06 02:31 PM
9 19,875
have not seen this anywhere I've looked, anyone know?
Jun7-05 08:04 PM
1 19,789
What is the difference between these terms? In what context do they apply to? How important is it that we treat them...
Jul6-05 11:50 AM
4 19,665
Hello, do anyone know a website where we can download for free 'equation editor' or any program to write math...
Apr17-07 08:00 AM
25 19,439
This sequence cropped up in an IQ test. I can't for the life of me work out the next term, any ideas? 3, 8, 18,...
Jul22-10 05:12 AM
73 19,423
I am a student who just finished high school and i am gonna go to college this fall. I got like 7 months to shape up...
Mar3-06 09:16 AM
Jeff Ford
22 19,391
parallelogram properties 1.>Each diagonal divides it into two congruent triangles. 2.>Diagonals need not bisect...
Apr17-06 12:17 PM
4 19,388
How does one do this, for example x= e^(-3t)u(t-4); how do you get x' ??
May6-03 09:38 AM
6 19,321
This sounds like first grade mathematics but I need to know the reasoning. Why is it that to find a fraction of a...
Sep22-06 04:20 PM
79 19,294
Can anyone tell me how can I calculate the angle between two lines in 3D. I need in my codings. I know it has a...
Jul6-06 01:55 PM
3 19,247
Hey guys, I was doing some questions from spivak when i noticed this integral he set up. To prove that the integral is...
Aug8-11 03:33 AM
23 18,835
hey, i was just wondering if anyone could help find the sum of the infinite series defined by 1/. I can split it into...
Nov2-09 03:10 PM
14 18,717
Hi everyone Could you give me a way to calculate the period of every trigonometric functions? thanks
Apr8-09 02:42 PM
4 18,607
HII Friends Iam little bit new to matlab and iam trying to use ode45 and wrote code as function dy =...
Apr24-07 04:03 PM
2 18,603
I was bored the other day and wondered whether or not it would be possible to find out the natural log of the...
Feb1-11 05:06 PM
20 18,594
How do i know under which circumstances to use synthetic and when to just do regular polynomial division? do they not...
Jun18-08 07:19 AM
6 18,464
The other day I was playing with my calculator and noticed that \sqrt{2+\sqrt{2+\sqrt{2+\sqrt{2+...}}}} \approx 2 ...
Sep8-09 12:30 AM
6 18,412
edited..thanks for your help
Jan7-10 04:46 AM
6 18,321
Can you get logarithms of imaginary numbers? The reason I was wondering is because integrating 1/(1+x^2) WRT x. I...
Apr28-13 06:43 PM
11 18,306
the regular ellipse formula in 2D is x^2/a^2 + y^2/b^2 = 1. but how can it be transformed into a 3D formula including...
Sep10-08 09:32 PM
10 18,205
I tried some formulas on my graph calculator after reading about root mean square calculations of power and physics....
Dec17-04 10:27 PM
3 18,186
Some rule says that not all bounded sequence must be convergent sequence , one example is the sequence with general...
Jan17-06 10:56 AM
7 18,167
This year I'm a freshman at university - physics - and we are just starting with mathematical analysis. I don't find...
Oct9-05 11:55 AM
robert Ihnot
7 18,127
Hi! In a geometric progression you can find the sum to infinety is some series, for example 4,2,1,... where the...
Sep7-04 06:48 AM
3 18,086
This may be an elementary question, but I've been thinking about it a little bit and wondering what other people...
Jan20-13 07:43 PM
41 18,057
Hi All, I went to this website where someone wants to know how to calculate the area of some intersecting circles...
Aug27-04 09:40 PM
4 17,872
1. I am in intermediate Algebra and would like to take one more course to get prepared for Calculus 1. I am currently...
Mar12-10 09:10 AM
Angry Citizen
2 17,850
I understand that the limit as x -> a for a polynomial function, f(x), is equal to f(a) because the function is always...
Sep29-05 10:49 AM
7 17,684
Why is it that many mathematicians in the past who have made significantly profound contributions to the world of...
Nov5-11 05:32 PM
50 17,620
(x+y)^4=x^4+y^4 We know this is true if x and/or y = 0, but what other possibilities are there? I solved for...
Nov22-04 04:58 PM
4 17,536
Dec7-08 05:53 AM
5 17,495
Hello, I have a simple equation (maybe simple for some) that I can't understand how to get from one point to the...
Apr24-04 12:55 AM
7 17,427
Sloth's Army is made up of three corps. Each of those corps is made up of two divisions. Each division is made up of...
Nov14-04 10:47 PM
20 17,410
Can someone let me know how to compute the standard deviation on the TI-83.:smile: Thanks, Home Decoration
Apr29-06 02:10 AM
1 17,407

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