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

Feb2313 09:23 AM
micromass

1 
33,169 
quick question:
how does this work (root)72 = 6(root)2
and what is this technique called?

Jul507 06:15 PM
Kurdt

2 
921 
a^(1/(2)^1/2))
that is a raised to the power 1/underroot(2)

Jul507 05:06 AM
HallsofIvy

2 
1,209 
Followup:
Suppose we have 2^9 ways of choosing topics on a pizza. Then, if we want different topics on 3 pizzas, we...

Jul407 09:30 PM
sk381

2 
882 
Hi, I am interested in knowing what the names of the english math books are for the school you begin on when you are...

Jul407 05:21 PM
disregardthat

15 
4,141 
My friend says that : If there are 9 different toppings then the number of ways to choose toppings for one pizza is ...

Jul407 05:21 PM
Werg22

4 
1,023 
hi
i'm confused at to how my textbook has done the following cancelling :S. hope you can clear things up for me :D...

Jul307 01:30 PM
Trail_Builder

2 
1,139 
cos(2x)=2cos^2(x)1
what algebrical rule guarantees me thet is right to divide both angles for 2:...

Jul307 11:46 AM
uart

1 
1,770 
when there is enough block ... here is my problem.
a hyperbola having F(5,0) and D(5,0) and difference of focal...

Jul307 11:44 AM
threetheoreom

2 
1,190 
Newby here.
Can someone summarize Godel's Theorems for me?
I'm not very knowledgeable on such things, but would...

Jul207 05:06 PM
matt grime

8 
1,721 
Just want a check of this please:
We have a complex equation of the form az+bz*+c=0
where a, b and z are complex...

Jul207 10:49 AM
loonychune

3 
2,419 
i just cant figure this out.
given a n x n matrix (with n>1) "A" such that all entries are integers and A is...

Jul207 09:43 AM
Kummer

4 
2,182 
How important is it to you to understand the math your applying? I am decent at math when it comes to remembering...

Jul207 06:29 AM
morson

7 
1,393 
im so embarrased askin so much :blushing:
show that given 5 distinct lattice points in the plane (points with...

Jul107 07:50 PM
Kummer

1 
891 
people discuss only distances between points but why not within a point itself ?
i think a point also has a distance,...

Jul107 06:58 PM
HallsofIvy

13 
1,316 
stupid error in the "tex" thing, see first post.

Jul107 12:35 PM
Trail_Builder

7 
1,296 
During my freshman year at Yale, I took a course in multivariable calculus under the tutelage of Prof. Serge Lang. He...

Jul107 08:40 AM
mathwonk

14 
4,672 
lol if you have time for a 6minute video watch this homeless guy is talking about suposed nonlinear algebra. I...

Jun3007 10:26 PM
Hurkyl

20 
4,124 
What would be the practical effects if it is proved that P=NP and an efficient polynomial time algorithm is found for...

Jun2907 06:25 PM
Reverie

9 
1,466 
Do you find that after doing a few hours of math it's harder than usual to follow conversations or form sentences?...

Jun2907 07:57 AM
Gib Z

7 
1,316 
hey does anyone know if studying fourier analysis is going to aid in physics, particularly in string theory or quantum...

Jun2907 01:51 AM
Reverie

3 
1,143 
I have a set of data points relating the width of an object in an image to its distance from the camera. I'd like to...

Jun2807 03:46 PM
Feldoh

9 
2,532 
how are the secret codes for recharging the credit of a phone or the secret credit card numbers gnerated? i hrd...

Jun2807 03:43 PM
Feldoh

3 
1,398 
Hi I am reading the book "Introduction to logic and the methodology of deductive sciences" and I'm doing my best on...

Jun2807 03:52 AM
fopc

7 
1,579 
OK...a friend of mine sent me this brain teaser and I havent been able to crack it...I'm starting to think that maybe...

Jun2707 10:21 PM
ice109

5 
2,936 
So I was having a conversation with the guy I share an office with and I brought up the gaussian distribution to show...

Jun2707 09:12 PM
chroot

8 
2,275 
what are some for evaluating logs? square roots? trig functions? this makes me curious
obviously i don't...

Jun2607 08:12 AM
Gib Z

6 
1,177 
Hello.
I have this page.I don't know from what book these questions are taken.
If anyone knows please tell me the...

Jun2507 03:50 AM
Aladin

2 
1,807 
http://arxiv.org/abs/0706.3342
The Forgotten Night: The Number Devil Explores Spherical Geometry
Marissa L. Weichman...

Jun2407 09:57 PM
mongoose

3 
1,837 
In my book and in other places, they give this rule to obtain the domain for
a compound function: "the domain of (f...

Jun2307 12:04 PM
Hurkyl

7 
3,488 
I know of Euler's equation
e^i(pi)1=0
but i saw another equation that interested me.
And I'd like to see if i...

Jun2307 02:41 AM
Gib Z

29 
4,297 
Hi all:
I don't quite understand what's the property of the mean curvature and gaussian curvature reflecting. And...

Jun2207 07:35 AM
Asuralm

0 
954 
I found a very elegant proof of a very well known calculus level result. The result, I don't want to say which yet,...

Jun2107 10:55 PM
mongoose

17 
3,701 
Okay, this may be a silly subject for a thread, but do you know that trick where you check whether a number is...

Jun2107 11:19 AM
matt grime

16 
2,381 
Hello,
I need some help in resolving a dispute. Recently, a friend of mine told me that the probability of rolling...

Jun2107 10:25 AM
Guttersnipe

5 
1,334 
I'm sorry for this, but what is the range and domain of the following function?
y = 24  2x
y has to be positive...

Jun2107 08:51 AM
ice109

4 
1,025 
Anybody that can show how to deduce
cos(a+b) = cos(a)cos(b)  sin(a)sin(b)
sin(a+b) = sin(a)cos(b) + sin(b)cos(a)...

Jun2007 11:32 PM
Hymne

3 
1,442 
I'm looking for a computer program that can do symbolical (i.e. not numerical) algebraic calculations. It doesn't have...

Jun2007 07:55 AM
neutrino

1 
2,098 
Compute the homology of R^3  S^1.
Actually a friend of mine asked me this question and I came up with the...

Jun2007 07:04 AM
matt grime

5 
1,842 
While a Fibonacci sequence is the sum of the previous two terms, what of sums of the preceeding n terms, and have...

Jun1907 02:47 PM
RJ Emery

2 
1,528 
To make an orange dye, 3 parts of red dye are mixed with 2 parts of yellow dye. To make a green dye, 2 parts of blue...

Jun1907 08:01 AM
MagcK

2 
1,328 