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

Feb2313 09:24 AM
micromass

1 
40,144 
The correct one is 2nd, but why not first?
Please guide , or tell me any link that relate to this derivation. Thanks

Jul1613 06:54 AM
Outrageous

2 
400 
And your boundaries are defined as: 0 < x < y < 1
How do you know the relationship between x and beyond this?
...

Jul1513 02:00 AM
CompuChip

1 
366 
i have reached a chapter in my pure mathematics text that introduces usubstitution as a method for solving integrals...

Jul1913 09:31 AM
lukka

4 
534 
I'm taking a short Calculus session this summer and the teacher zooms through things. I still don't fully understand...

Jul2113 08:25 PM
jasonRF

35 
1,880 
10.\bar{9}=dx?

Jul1713 10:24 AM
Mandelbroth

14 
909 
Is there a standard notation for partial derivatives that uses indexes instead of letters to denote ideas such as the...

Jul1313 11:44 PM
lurflurf

2 
409 
My question is that why is their a need for both upper and lower while calculating Definite Integrals.
The...

Jul1413 02:11 AM
san203

5 
576 
Recently, an AT&T commercial has been running on TV where a moderator asks some children about the largest number they...

Jul1513 06:12 PM
mfb

8 
514 
Does anyone know of solutions (or sources showing them) to the area and line lengths of the loops and arcs of prolate...

Jul1213 05:56 PM
liometopum

2 
507 
1.)does an infinite number of zeroes summed up equal a finite value?
2.)does dx=0?
3.)does 2xdx=0?
4.)the...

Jul1613 03:18 PM
DeIdeal

31 
1,642 
Imagine an box with initial dimension x_0 and y_0 with a cavity in the centre with area R^2 . Lets say the box...

Jul1213 01:31 PM
Chain

4 
479 
if we want to find the volume of a function revolved about the x axis all we do is find the differential element..
...

Jul1213 08:45 PM
Simon Bridge

5 
685 
i understand the reason for if the evaluated integral converges then the series also converges. However, just because...

Jul1013 01:10 PM
Millennial

7 
751 
would someone please care to reword this proof for me?
http://en.wikipedia.org/wiki/Limit_comparison_test
it...

Jul1013 06:50 PM
Mark44

9 
777 
Hello guys!
I am trying to get a solid grasp of the Precise Definition of a Limit. I am having a particular hard...

Jul1013 05:21 PM
WannabeNewton

8 
806 
Hi,
I'm studying calculus of variations, this is a bit of a recap of regular calculus.
You got a function, but...

Jul1213 05:57 PM
Dr_Pill

4 
653 
Is there a treatment of "infinitesimal operators" that is rigorous from the epsilondelta point of view?
In looking...

Jul2313 09:25 AM
Stephen Tashi

68 
3,602 
I just learned that d/dxr(t)=1/r(t) X r(t)*r'(t), where * is the dot product and X is mutiply. What is the meaning...

Jul1913 03:58 PM
Chestermiller

3 
568 
Its been a while since I've done any type of calculus.
So here we go. Vectors is this scenario represent cords,...

Jul1713 05:54 PM
jedishrfu

1 
371 
So I'm trying to study for my calc 3 exam, but I have noticed that my book doesn't have many limit questions that use...

Jul1713 04:31 PM
Mandelbroth

1 
522 
I would like to take divergence of the following expression
∇.((xi × xj × xk)/r^3), which is a triadic.
here ...

Jul1713 08:48 AM
praban

0 
722 
so, the magnitude of the cross product represents the area or volume enclosed by any 2 or 3 vectors respectively, but...

Jul1713 05:00 PM
electricspit

2 
513 
equation of the form
ax+bx+cx=a0+b0+c0
ax+bx+cx=d
what exactly does "d" represent? is it the distance of a...

Jul1713 06:54 PM
LCKurtz

5 
512 
I don't understand what the derivatives really mean?I know that they are the slope of the tangents drawn to a...

Jul1013 02:02 AM
WannabeNewton

3 
517 
Hi there. I am dealing with a mathematical problem which seems to be much harder than I initially expected:
...

Jul1913 11:19 AM
KingBongo

9 
603 
Hello.
I'm not terribly proficient with Bessel functions, but I know that those of the first kind are given by
...

Jul1213 05:20 AM
IridescentRain

2 
546 
For the series such that: \Sigma _{n=1} ^{\infty} a_n =\Sigma _{n=1} ^{\infty} b_n A certain theorem says that these...

Jul1613 11:12 AM
Office_Shredder

11 
1,012 
Let's suppose we have a matrix ##\textbf{C}=\begin{bmatrix}c_{1,1} & c_{1,2} & c_{1,3} & \cdots & c_{1,m} \\ c_{2,1} &...

Jul913 09:45 PM
Ackbeet

1 
459 
In this video (from 27.00  50.00, which you don't need to watch!) a guy shows how you can solve the general second...

Jul1513 01:18 PM
bolbteppa

6 
474 
if space curve C=<f(t),g(t),h(t)>, and
v=\frac{dC}{dt}=<\frac{df(t)}{dt},\frac{dg(t)}{dt},\frac{dh(t)}{dt}>
Why...

Jul1613 07:43 PM
WannabeNewton

3 
565 
How to find the integral of sin x dx?
$$\int sin x dx=?$$

Jul2313 02:17 AM
CompuChip

20 
1,078 
how do I find the integral of ∫√(t^4+x^3)dt from 0 to x^2?

Jul1813 10:39 PM
lurflurf

1 
286 
Hi there,
I am trying to calculate both volume and moment of inertia of shapes which surface coordinates are...

Jul2013 04:00 PM
power11110

6 
545 
So i realize that the integral of is pretty much the height of the rectangle f(x), multiplied by the width dx. But...

Jul2113 01:39 PM
Mandelbroth

6 
632 
So, I'm studying normalization (Quantum Mechanics). I came across examples of integrands which they say are odd. So,...

Jul2113 07:47 AM
jhosamelly

11 
1,084 
I was looking at an example where it was evaluating a closed loop integral of a vector field around a triangle (0,0)...

Jul2213 01:32 PM
wahaj

2 
428 
Hello I'd first like to state I know how to solve and I know the answer to this integral however when I first looked...

Jul2213 11:35 AM
jbunniii

3 
455 
The volume of a sphere with radius r is
v = \frac{4}{3}\pi r ^{3}
It makes sense that its derivative with...

Jul2313 05:57 PM
lurflurf

4 
589 
In an earlier post i was shown how to represent an integral as an infinite sum. So why is the anti derivative a...

Jul2213 10:02 PM
LeonhardEuler

4 
542 
f is a positive decreasing function of x, f(n) = an for all n:
\int\stackrel{n+1}{1} f(x) dx \leq a_{1} + a_{2} +...

Jul2313 12:56 PM
tolove

2 
473 