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 
i know that line is a one dimension but i cannot understand then why do sometime need two spatial variable to specify...

Sep811 12:55 PM
asad1111

8 
1,300 
1)why is x(t)+x(t) always even??..no matter if x(t) even or odd???
2)when we talk about unit step...

Sep811 10:05 AM
micromass

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...

Sep711 11:02 PM
uart

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...

Sep711 07:27 PM
gsal

1 
754 
Hi,
I am working on a Theory of Knowledge Essay and I was thinking how the proof to Fermat's Last Theorem...

Sep711 07:22 PM
SteveL27

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...

Sep711 07:41 AM
xeon123

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...

Sep611 04:54 PM
Nikitin

4 
1,082 
I am interested in learning math from a historical perspective. Starting with euclid and working myself up to...

Sep611 04:44 PM
superg33k

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...

Sep611 12:10 PM
JSuarez

4 
2,087 
Hi, I really need some help here.. Vectors remind me why I hate geomtery.
problem 1: Prove that UxV2 = U2+V2...

Sep611 11:40 AM
Nikitin

4 
845 
Hi,
Before ask my question, let me explain how this game works.
It exist a board with 9 positions and 9 pieces....

Sep611 10:01 AM
xeon123

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...

Sep511 03:12 PM
D H

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...

Sep411 04:10 PM
JB34

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...

Sep411 03:36 PM
J3N0VA

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...

Sep411 01:01 PM
Barnak

0 
721 
hello,
in the Wikipedia page for Dimensional analysis how do we know that area = "largest edge2 • f (angle1,...

Sep411 07:48 AM
HallsofIvy

1 
1,932 
Hello,
I'm currently trying to convert polar equations to Cartesian equations and viseversa. I noticed an equation...

Sep411 12:29 AM
stallionx

3 
1,231 
Is there a way to calculate the period of a trigonometric series (like the one below) analytically?
...

Sep311 11:59 PM
LCKurtz

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...

Sep311 11:39 PM
LCKurtz

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)
...

Sep311 03:54 PM
gongo88

5 
1,883 
What does it mean for high schoolers to do "research" (in math, physics, chemistry, biology) at a local college?
I...

Sep311 01:29 PM
BloodyFrozen

0 
675 
Is Zero a positive or negative whole number ? Is it even a whole number ?

Sep311 12:09 PM
Mark44

112 
10,424 
Hi,
I'm solving a problem which determines the flow between a porous material and an impermeable material, using...

Sep311 05:40 AM
hermano

0 
573 
Hello all :smile:
I have started the problem set for Chapter one (basic properties of numbers) in Spivak's...

Sep211 07:23 PM
206PiruBlood

7 
1,459 
whenever a function is expressed in terms of another function,how do we find whether the function is increasing or...

Sep211 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...

Sep211 03:48 PM
techmologist

1 
1,329 
I am facing difficulty in graphing this logarithmic function:
some constant= y + log x
what all steps are...

Sep211 12:28 PM
gliteringstar

2 
809 
I know the sin(arccos(x)) = (1x^2)^0.5
I was wondering what some of the others are:
cos(arcsin(X))...

Sep211 08:01 AM
HallsofIvy

4 
1,790 
members i need some basic knowledge about real analysis
i got lot of trouble..... about this topic

Sep211 05:57 AM
dalcde

2 
1,087 
I am having difficulty with students understanding mathematical proofs. Even if they do understand them in the class...

Sep111 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...

Sep111 08:41 AM
anishtain4

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. ...

Aug3111 12:49 PM
Hurkyl

1 
972 
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 
3,655 
SO the entrance to a college is based off of two factors: 54% grade point average, and 46% supplemental application....

Aug3111 10:39 AM
ACHQ

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...

Aug3111 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...

Aug3111 03:02 AM
stallionx

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...

Aug3011 04:44 PM
lukea125

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...

Aug3011 04:14 PM
KingNothing

7 
1,277 
If i have 1 objective question with four multiple choices. The probability of getting 1 question correct is 1/4. But...

Aug3011 10:14 AM
phinds

11 
2,151 
Simple question:
When should you use "y = x2 + 1" instead of "f(x) = x2 + 1", and vise versa?
I've asked...

Aug3011 12:35 AM
Kevin_Axion

15 
4,159 