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

Feb2313 09:24 AM
micromass

1 
40,137 
Hi,
I'm having trouble determining this limit:
\lim_{x\rightarrow0^+}\frac{\sqrt{x}\sin\sqrt{x}}{1e^{x}}
...

Aug1605 07:44 AM
HallsofIvy

18 
2,154 
Expired Thread...

Aug1605 12:41 AM
lurflurf

1 
1,701 
i am confused on this one.....my friend told me that as x>0 ,(sinx)/x tends to 1 from left hand side.......similarly...

Aug1505 09:55 PM
lurflurf

3 
908 
Hello. I didn't know if this is the right forum to post this (since this is the Calculus section and my question...

Aug1405 07:09 PM
relinquished™

6 
1,141 
let be the double integral:
\int_0^{\infty}dx\frac{f(x)}{x^{a}}\int_{\infty}^{\infty}dyG(x+y)y^{ib}=0 (1) a and b...

Aug1405 03:18 PM
eljose

0 
965 
I want to know some examples of an infinite set S with a least upper bound that is not an accumulation point of S. Is...

Aug1405 06:54 AM
irony of truth

7 
1,282 
I want to let f and g be functions to be defined on a common domain D. Then the maximum and minimum functions are...

Aug1405 04:01 AM
irony of truth

9 
1,573 
Any Calculus researchers interested in disproving this theorem with a simple base and function?
Orion1 change of...

Aug1405 01:34 AM
Orion1

2 
1,758 
I know how to work highschool level calculus and such, but I don't feel like I have a very intuitive understanding of...

Aug1305 05:08 PM
SplinterIon

20 
3,711 
i'm trying to solve an equation, but i'm stuck on this step:
(integral sign) e^2x*e^x(3sin2x+2cos2x)dx =?

Aug1305 02:28 AM
asdf1

6 
956 
If I were proving that "if x is an accumulation point of set S and e >0, then there are infinite number of points...

Aug1205 02:15 PM
rachmaninoff

4 
1,103 
Dear members,
I try to find the upper bound of the following function. Can anybody gives a hint? Thanks!
...

Aug1205 06:43 AM
phonic

0 
6,323 
can someone show me how to do this integral:
\int \frac{(1x)}{x^2} e^{x1} dx

Aug1205 01:26 AM
GCT

2 
943 
Hi guys.
I was doing a SAC and there were two questions
one was y=\frac {1}{X^2}1 and the other was y=\frac...

Aug1105 09:30 AM
bayan

4 
1,150 
Question,
Evaluate:
\sum_{k=1}^{\ 6}\ f(xk)
where
\ xk\ = \ k/2
and
\ f(x)=sin\pi\ x
OK,
does this mean that...

Aug1005 05:37 PM
Maxos

3 
1,455 
Hello, it's me again ;)
Problem:

Define
f_{n}(x)=n^{\alpha}, x\leq 1/n, f_{n}=0 elsewhere
Give...

Aug1005 06:27 AM
Theraven1982

2 
4,395 
Has anyone read Cours d'analyse mathématique (Course in Mathematical Analysis)? If you have, do you find some the the...

Aug905 07:36 PM
fourier jr

15 
1,797 
Stewart uses the chain rule to show how to find the tangent to parametric curves. Given:
x=f(t) and y=g(t), and...

Aug905 03:31 PM
Cyrus

14 
2,427 
Can someone please help me in evaluating the following integral?
Im really bad with trig functions, and have been...

Aug905 11:35 AM
dx/dy=?

6 
2,511 
A few weeks ago, I was rereading my multivariable calculus textbook, because I've recently studied linear algebra and...

Aug905 11:29 AM
mathwonk

16 
2,883 
I'm trying to solve this problem:
Compute \oint_c(y+z)dx + (zx)dy + (xy)dz using Stoke's theorem, where c is the...

Aug905 08:31 AM
HallsofIvy

1 
1,268 
Howdy felles.
I have a question which I find rather confusing, and that is to prove that the area between two...

Aug905 04:36 AM
VietDao29

9 
3,142 
While working on a problem in special relativity I ran into the following equation and am trying to understand it...

Aug805 02:47 PM
mmwave

1 
2,521 
Hello,
I'm trying to calculate the following integral,
in the limit that n goes to infinity:
\int_{1}^{\infty}...

Aug805 02:37 PM
Theraven1982

11 
1,405 
hello all.
Im a bit stuck on a math problem. I am trying to figure out what the parametric equations of a trajectory...

Aug805 08:25 AM
HallsofIvy

1 
906 
Question 1
Prove that if (V, \\cdot\) is a normed vector space, then
\left \x\  \y\ \right \leq...

Aug805 07:00 AM
Oxymoron

13 
1,424 
Hey, everyone
I am working on a calc problem, and I have no idea where to start. The integral is
e^x...

Aug705 08:10 PM
LeonhardEuler

21 
1,686 
It's a really interesting equation. I'm not sure how it works out though. On a similar note, when I raise a whole...

Aug705 05:05 PM
SteveRives

18 
2,630 
To integrate functions as the limit of an integral sum, how can we know which way to take the partition points in the...

Aug705 04:51 PM
matt grime

3 
4,855 
Hi
Just had a question.
Assuming tan(x) is given by a power series with coefficiants (An). How can it be shown...

Aug705 01:29 PM
complexhuman

2 
1,213 
Let define the function
Z(x)=\Gamma(x)2^{1x}\pi^{x}cos(x\pi/2)
then my question is if =1= with =a^2+b^^2...

Aug705 10:46 AM
shmoe

2 
1,443 
i know that zeta(2) = pi^2/6 and zeta(4) = pi^4/90
what is zeta(3)? can i use fourier series?

Aug605 11:40 PM
shmoe

4 
1,552 
The following is an outgrowth from a problem I encountered in the Homework section concerning the convergence of:
...

Aug605 05:58 PM
mathman

13 
1,123 
Equation1:
\frac{d^2}{dx^2} (x^n) = \frac{d}{dx} \left
The LHS for Equation1 is the symbolic condensed version...

Aug605 05:16 PM
iNCREDiBLE

4 
1,817 
hi felles.
I am trying to find what is the volume of the y=\frac{a}{x^2}+b is when it is rotated in yaxis.
The...

Aug605 04:42 PM
Orion1

3 
1,214 
I know basic calculus such as derivatives and integration. Before school starts, I would like to get prepared for my...

Aug505 11:52 PM
sniffer

5 
1,517 
For the proof of lagrange multipliers, it is based on the assumption that the function you are optimizing, f(x,y,z),...

Aug505 04:23 PM
matt grime

11 
2,151 
I'm working on a problem that I've almost completed except for a single integral that I can't seem to figure out. I...

Aug505 03:33 PM
tomkeus

11 
2,425 
Im supposed to solve
integral 10 to +infinity ((sin(1/x)/(1+x^3))dx with error precision of e=0.5*10^4. Can someone...

Aug505 01:31 PM
undefined83

1 
1,895 
I am seeking a function r=r(\eta) for a computational mesh. It has to have the same shape as the one shown in the...

Aug505 09:03 AM
Clausius2

0 
1,068 