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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
1 33,167
i know that line is a one dimension but i cannot understand then why do sometime need two spatial variable to specify...
Sep8-11 12:55 PM
8 1,300
1)-why is x(t)+x(-t) always even?? matter if x(t) even or odd??? 2)-when we talk about unit step...
Sep8-11 10:05 AM
3 1,327
so I've got this equation down to x*ln(2/x) = 5 Can someone show/point me to a page where I can see how to solve...
Sep7-11 11:02 PM
3 1,345
I'm doing my economics thesis on game theory, and need to solve a system of nonlinear equations (these will be the...
Sep7-11 07:27 PM
1 754
Hi, I am working on a Theory of Knowledge Essay and I was thinking how the proof to Fermat's Last Theorem...
Sep7-11 07:22 PM
3 1,382
Hi, I've this board, like shown in attachment, that has 2 rows. Each rows have 4 places. I'm trying to find a...
Sep7-11 07:41 AM
5 884
This is a game with N players where each player secretly picks a number from 0 to 100. The winner is the player who...
Sep6-11 04:54 PM
4 1,082
I am interested in learning math from a historical perspective. Starting with euclid and working myself up to...
Sep6-11 04:44 PM
3 1,581
I need to find the solution to the geometric series expansion of the form... \sumn^2*x^n , for n=0,1,2,... most...
Sep6-11 12:10 PM
4 2,087
Hi, I really need some help here.. Vectors remind me why I hate geomtery. problem 1: Prove that |UxV|2 = |U|2+|V|2...
Sep6-11 11:40 AM
4 845
Hi, Before ask my question, let me explain how this game works. It exist a board with 9 positions and 9 pieces....
Sep6-11 10:01 AM
6 1,181
What happens if you have to take the arccos of a number greater than 1 or less than -1. I know from a right...
Sep5-11 03:12 PM
7 3,582
Hello, I'm pretty rusty when it comes to rearranging more complex equations and can't seem to remember how to deal...
Sep4-11 04:10 PM
9 1,798
When they work out your kill to death ratio on the game Call of Duty Black Ops, if they calculate your total kills...
Sep4-11 03:36 PM
9 1,400
I'm not sure this is the right thread to post my problem : I'm trying to define a uniform distribution on the...
Sep4-11 01:01 PM
0 721
hello, in the Wikipedia page for Dimensional analysis how do we know that area = "largest edge2 • f (angle1,...
Sep4-11 07:48 AM
1 1,932
Hello, I'm currently trying to convert polar equations to Cartesian equations and vise-versa. I noticed an equation...
Sep4-11 12:29 AM
3 1,231
Is there a way to calculate the period of a trigonometric series (like the one below) analytically? ...
Sep3-11 11:59 PM
3 1,318
I am having trouble understanding how the vector equation of a line : (x,y,z) + t(x1,y1,z1) can be used in conjuction...
Sep3-11 11:39 PM
1 874
For a example, x=16cos(10t+5π/3) ,S.I. How am i supposed to calculate the period?(in order to do the graph) ...
Sep3-11 03:54 PM
5 1,883
What does it mean for high schoolers to do "research" (in math, physics, chemistry, biology) at a local college? I...
Sep3-11 01:29 PM
0 675
Is Zero a positive or negative whole number ? Is it even a whole number ?
Sep3-11 12:09 PM
112 10,424
Hi, I'm solving a problem which determines the flow between a porous material and an impermeable material, using...
Sep3-11 05:40 AM
0 573
Hello all :smile: I have started the problem set for Chapter one (basic properties of numbers) in Spivak's...
Sep2-11 07:23 PM
7 1,459
whenever a function is expressed in terms of another function,how do we find whether the function is increasing or...
Sep2-11 05:22 PM
Dr. Seafood
2 2,207
For a surface S bounded by a curve C, \int_{C} \mathbf{t} \times \mathbf{n}ds = -2\int_{S} H \mathbf{n}da t is...
Sep2-11 03:48 PM
1 1,329
I am facing difficulty in graphing this logarithmic function: some constant= y + log x what all steps are...
Sep2-11 12:28 PM
2 809
I know the sin(arccos(x)) = (1-x^2)^0.5 I was wondering what some of the others are: cos(arcsin(X))...
Sep2-11 08:01 AM
4 1,790
members i need some basic knowledge about real analysis i got lot of trouble..... about this topic
Sep2-11 05:57 AM
2 1,087
I am having difficulty with students understanding mathematical proofs. Even if they do understand them in the class...
Sep1-11 12:05 PM
Stephen Tashi
8 2,293
does anyone knows a forum specially made for maple so I can get my answers fast? Or will admins of this forums make a...
Sep1-11 08:41 AM
2 1,450
I was reading the proof that every Vector Space has a basis which invoked Zorn's Lemma. The proof can be found here. ...
Aug31-11 12:49 PM
1 972
For reference, let \mathbb N^{\infty} denote the set of all \infty-tuples of the form (n_{1}, n_{2}, \dots) with...
Aug31-11 12:44 PM
48 3,655
SO the entrance to a college is based off of two factors: 54% grade point average, and 46% supplemental application....
Aug31-11 10:39 AM
7 3,495
Hi all, Given... a + b > p b > q Is there no way to place any limits on a in terms of p and q only? I know...
Aug31-11 10:02 AM
Stephen Tashi
1 1,331
Why is the product of the gradients of 2 straight line perpendicular to each other is always equal to -1 ?? Is there...
Aug31-11 03:02 AM
5 4,149
Hi Guys, I was hoping someone would be able to help me with this integration. It's been killing me haha. I've...
Aug30-11 04:44 PM
2 2,140
This might go into stats, I'm not sure. But I'll throw it out there. You are at the grocery store and they have two...
Aug30-11 04:14 PM
7 1,277
If i have 1 objective question with four multiple choices. The probability of getting 1 question correct is 1/4. But...
Aug30-11 10:14 AM
11 2,151
Simple question: When should you use "y = x2 + 1" instead of "f(x) = x2 + 1", and vise versa? I've asked...
Aug30-11 12:35 AM
15 4,159

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