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

Feb2313 09:23 AM
micromass

1 
37,964 
Well,
From what I understand, to determine the intersection of a line and a plane, we use parametric form of the...

Aug1605 02:51 PM
singleton

4 
2,914 
Is there an "prettier" way to obtain a taylor series for tan x about pi/2? Currently, I expand sin and cos and do...

Aug1605 11:27 AM
krab

8 
7,103 
Hey.
I tried to make a function that could calculate the function of a "average" line. See my picture:...

Aug1605 08:33 AM
or.han

2 
1,388 
Hi, guys. In a previous post this problem was given: Let B be a solid box with length L, width W, and height H. Let S...

Aug1505 01:05 PM
stevo13

3 
1,468 
I don't quite understand how to add step functions and would like to get that down before this one class begins. ...

Aug1505 12:31 PM
EvLer

9 
7,066 
Saw this in the thread about "Explaining topology..."
Is there an easy way to extend this particular definition...

Aug1505 11:00 AM
mathwonk

23 
2,669 
This question seems a little silly, because it looks so simple
but
There's one thing I don't understand:
If y``...

Aug1505 07:33 AM
asdf1

4 
1,507 
Why does lnX!=XlnXX?

Aug1505 05:42 AM
asdf1

15 
1,515 
Well, I'm doing homework (again).
I was introduced to homogeneous systems of planes and then asked why there must...

Aug1405 09:24 PM
rachmaninoff

1 
1,345 
This was done while I was in a statmech class a long, long time ago.......didn't understand it very well at the time....

Aug1405 03:48 PM
rachmaninoff

9 
3,322 
Hi,
I'm not sure how to tackle this quiz question I came across :
Let P(n) be the number of ways of writing a...

Aug1305 11:49 AM
matt grime

10 
1,494 
Well, I'm learning plane sketching in R3.
One of the questions is 5y z  10 = 0
It is my understanding that the...

Aug1305 10:43 AM
singleton

4 
4,018 
Hello,
I have a question concerning the GMM equation specification.
Say we partition each day in 7 intraday...

Aug1305 08:37 AM
vienna_quant

8 
4,225 
Hello friends...
If you are aware of a pretty comprehensive list of binomial identities available on the internet...

Aug1305 02:27 AM
maverick280857

0 
10,606 
Hello,
I have a system of trigonometric equations from which I should find theta1,..., theta5. Is it possible you...

Aug1205 06:49 PM
mikeley

4 
2,697 
I am really stumped! Using only Trigonometry, I am suppose to calculate the amount of force that is needed to keep a...

Aug1205 03:17 AM
LENIN

3 
3,344 
Do any of you know of excellent advanced multivariable calculus textbooks? If so please list them. (Don't mention...

Aug1105 09:48 PM
mathwonk

14 
4,633 
what is meant by the term 'surface term'?
thank you

Aug1105 09:46 PM
hypermorphism

11 
2,403 
I need to prove by mathematical induction that all positive numbers of the form 5^n4n+15 are divisible by 16 where n...

Aug1005 05:18 PM
monet A

8 
3,772 
this question may sound kind of dumb, so if it is, i apologize, but let say you have a line with a point taken out of...

Aug1005 03:55 AM
Timbuqtu

5 
969 
I am terribly sorry for not being able to write this simple equation in Latex form. (I will be really glad if someone...

Aug1005 03:47 AM
rachmaninoff

2 
1,598 
let be the quotient:
Lim_{x>c}\frac{\zeta(1x)}{\zeta(x)}
where x=c is a root of riemann function... then my...

Aug905 09:14 AM
shmoe

4 
1,237 
What's the difference between:
6.6725985D20
and
6.6725985E20

Aug805 10:30 PM
tony873004

2 
1,631 
Let be the function h(x)=f(x)+g(x) we want to obtain the values of x so h(x)=0 and we have that f(x) and g(x) have the...

Aug805 03:23 PM
matt grime

15 
1,738 
hi
i want to know what is cordinate system and how to find angle b/w two connected lines

Aug805 02:46 PM
laker88116

2 
3,437 
I have been thinking about this problem for awhile, but have no idea to even begin solving it. Was wondering if anyone...

Aug805 02:27 AM
VietDao29

1 
1,247 
i am given an formula Sn= n/2 and i am told to verify the formula represents the sum of n terms of an arithmetic...

Aug705 07:22 PM
yourmom98

5 
2,695 
From Analitic Geometry;
Tan(x) = m
m1*m2 = 1
Tan(0) * Tan (90) = 1
Therefore;

Aug705 06:13 PM
Hurkyl

13 
1,086 
howdy,
i am considering of opening a $5,000 daily compounding certificate of deposit for six months with an...

Aug705 04:14 PM
HallsofIvy

3 
1,106 
Hi!
I'm working through the book "Problem Solving Strategies" by A.Engel at the moment.
There is an example in the...

Aug705 06:28 AM
mansi

9 
1,250 
Ok, i missed the class on finding the inverse of a matrix, and i only have a little bit of an idea on exactly what row...

Aug705 05:00 AM
TD

1 
926 
Hi any idea on this please.
Find the values of constant A,B and C if the ellipse 4x^2 +y^2+Ax+By+C=0 is to be...

Aug605 04:24 AM
TD

5 
1,216 
Please any help.
Use the symbols \beta and \sigma definition of limit to prove that limit...

Aug605 02:02 AM
quasar987

3 
3,867 
Please help me on this.
If f`(x) is continuous on ,apply the Mean Value Theorem to prove the inequalities min \leq...

Aug505 07:59 PM
kidia

4 
1,556 
I'm trying to rearange an equation but don't manage to get the right results so I guess the rearranging did not work...

Aug505 05:08 PM
HallsofIvy

3 
1,889 
Im trying to solve (4x4)/(x+2)< 2x3
I get it down to 0<(2x+1)(x2) if x+2>0
0>(2x+1)(x2) if x+2<0
...

Aug505 05:44 AM
lurflurf

3 
2,318 
Hi PPls
okay i have studied calculus and i can easily see its application in many things like calculating...

Aug405 09:11 PM
leright

25 
9,232 
math would be easier if we stuck with 9 digits. any way try solving this.
124x54+39+md=?
hint md is roman numerals

Aug405 05:12 PM
Zurtex

1 
894 
how does weierstrass' approach to analysis differ from the classical approach, i.e leibnizs' and newton's calculus?

Aug405 04:06 AM
MathematicalPhysicist

15 
2,368 
I've been trying to explain what topology is, and why it is important, to nonmathematicians. Specifically to other...

Aug405 02:29 AM
matt grime

44 
4,343 