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

Feb2313 09:24 AM
micromass

1 
46,214 
S is a portion of a curve with r(u,v)
where 0 < u < 2 and 0 < v < 2pi
I'm meant to calculate Flux of the vector...

Apr2613 09:19 AM
Bipolarity

2 
670 
I have a question about limits at infinity, particularly, about a limit I have seen in the context of infinite series...

Apr2113 04:43 PM
Bacle2

7 
1,122 
If I want to find \int f(x) dx where x=a+b and a and b are both variables how would I do this in terms of a and b....

Apr2113 08:05 PM
fzero

8 
1,263 
Ive repeatedly asked people and my teachers how to solve logs by hand, and ive always got the same answer "They used...

Apr2113 08:41 PM
cmcraes

4 
902 
Hi I am struggling trying to see understand the basic propagator integral trick.
\int...

Apr2013 05:29 AM
pleasehelpmeno

2 
715 
Is there any rule of thumb for which variable should be integrated first?, i.e. to make the whole process of double...

Apr1813 04:36 PM
Simon Bridge

1 
475 
If I want to find the distance from a point to a plane.
E.g. (2,1,1) to the plane x+y+z=1
I know that distance...

Apr2013 05:23 PM
mathman

8 
817 
so i have a question about calculating the RMS value of a fully rectified clamped sinusoid.
Assumptions:
The top...

Apr2013 10:18 AM
Stephen Tashi

1 
632 
Hello,
I was studying the theorem of smoothness/compactness in Fourier theory and at the very last step of the...

Apr2513 03:20 AM
mnb96

5 
888 
Hi guys,
I was solving this problem using backward interpolation ...

Apr1813 06:28 PM
mfb

1 
664 
Hi guys,
I am getting to the end of my cal 2 class and we're hitting infinite series, I was just curious what are...

Apr2113 04:13 PM
mathsciguy

12 
889 
When doing a path integral to determine the work done by a particle :
...

Apr1913 08:34 AM
HallsofIvy

1 
454 
Hello,
Could anyone please explain me the steps in these pictures.
I do not understand the second step.
...

Apr2113 09:37 PM
Desii

3 
752 
The signal length from satellite to the earth station (AC) can be found as
2(H)/ Due to the earth projection
...

Apr2113 10:47 AM
Mandelbroth

3 
705 
This is a copy of the book:
http://i38.tinypic.com/20faqnc.jpg
I know the derivation part, I just want to see...

Apr2113 03:39 PM
yungman

2 
503 
Could you help me to find the general term of the sequence:
## 1 , \frac{5}{3} , 1 , \frac{15}{17} , 1 ,...

Apr2113 04:34 AM
mfb

5 
629 
Is it posible that the product of two different divergent series be a convergent serie?

Apr2113 03:01 AM
chiro

2 
470 
Hi all, could some one tell me what I am doing wrong in my analysis in the attached file?
Its a parabolical flare...

Apr2613 04:35 AM
cmmcnamara

6 
935 
I was sifting through the beginning of my book when i came upon a section based on marginals and differentials. My...

Apr2813 04:50 AM
Fredrik

7 
1,073 
Can someone please show me how the formula
\sum^{∞}_{0}\frac{u^{x}}{x!} = e^{u}
Is derived?
Or link me to an...

Apr2113 06:27 PM
CraigH

3 
732 
Hello. I can't seem to wrap my head around the geometry of the gradient vector in ℝ3
So for F=f(x(t),y(t)),...

Apr2213 02:50 AM
DFeng25

8 
1,011 
Hi!
I am trying to solve this triple integral for computing the potential: ...

Apr2213 10:35 AM
keyos89

4 
622 
Back to how income differences is explained in neoclassical theory, one can ask the question why GDP/capita is $5200...

Apr2213 12:34 PM
jbunniii

1 
623 
1. The following integral identity holds...

Apr2713 01:31 AM
jarvisyang

4 
919 
I'm working on simple game and am working on a leveling system, using a function to get experience needed. I am using...

Apr2513 12:23 AM
Brokenhope`

10 
754 
Hi, I'm doing an online course for Calculus 12 and I have been struggling with Implicit Differentiation, hoping...

Apr2413 06:15 AM
playdohh

3 
529 
Hello
Firstly apologies for what seems like an extremely fundamental question, it's been a while since I've done...

Apr2513 05:37 PM
haruspex

4 
700 
Function is context is:
$$\int \frac{(sin^22x)}{(4(1+3cos^2(x)))}dx$$
And according to wolframalpha (I wasn't able...

Apr2413 04:54 PM
anj16

4 
709 
I'm trying to understand the concept of a Gradient vector, and it seems I'm having trouble visualizing certain stuff....

Apr2613 06:50 AM
WannabeNewton

3 
678 
Stokes' Theorem says the curve integral of any surface S simply equals the counterclockwise circulation around its...

Apr2513 07:51 AM
jambaugh

3 
795 
Hi all,
I'm working on a math problem with a known answer  though I can't reproduce the maths.
The problem is...

Apr2613 04:48 PM
mfb

3 
877 
Instead of the shell method, can't one find the volume of a sphere by integrating/summing its horizontal areas?

Apr2613 12:24 PM
Mark44

1 
595 
I would like to calculate the integral
\begin{equation}
\int \frac{1}{\mathbf y} \nabla \frac{1}{\mathbf y...

May113 04:55 AM
Jano L.

2 
763 
When creating a Fourier series for a function f(x), I consider whether the function is odd or even first. Yet, often...

Apr2713 07:03 PM
micromass

3 
768 
I don't understand the calculus behind this thermodynamics concept:
S = f(T,P)
dS = (∂S/∂T)_P*dT + (∂S/∂P)_T*dP...

Apr2913 03:53 AM
DrClaude

4 
1,826 
When calculating the limit of the function f(x) = (x^2 + 3)/ sqrt(2x^4 + 5) as x→∞, is it correct to square the top...

Apr3013 03:44 AM
SherlockOhms

9 
727 
The natural logarithm can be expressed as
lim n(x^(1/n)−1)
n>ifinity
Can someone please derive...

Apr2813 06:34 PM
tinytim

3 
655 
http://sphotosh.ak.fbcdn.net/hphotosakash4/485580_10200547582988715_854455727_n.jpg
In formula 1 it says F(1) =...

Apr2913 12:35 PM
Nikitin

4 
806 
I've been trying to figure out how to integrate 1/(x+ln(x)) but am not getting anywhere. Mathematica can't do it, and...

Apr3013 09:12 AM
pwsnafu

7 
673 
Suppose that for any solid region D, it is true that
\int\int\int_{D}f(x,y,z)dV = \int\int\int_{D}g(x,y,z)dV
...

Apr3013 10:54 AM
CompuChip

2 
567 