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April 16, 2014

Search: calculus - power series ASAP please :)

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calculus - power series ASAP please :)
using power series, integrate & evaluate to 4 dec. places integral from 0 to 1: sin x^2 dx i'm REALLY stuck on this. and i need help asap.. what is the inverse of "sin x^2" so that i could have it in a fraction that will fit the power series equation? and that is: (A)/(1-R) ...
Tuesday, July 31, 2007 at 1:48pm by COFFEE

Calculus
Find a power series, centered @ x=0, for function f(x)=x/(1+2x). I know this is a maclaurin series, but my work doesn't get the right answer. Can you please show steps? Also,do all power series start with a 1, as in (1+2x+4x^2+...)? Thanks in advance!
Thursday, March 8, 2012 at 8:21pm by W

Calculus
Find a power series, centered @ x=0, for function f(x)=x/(1+2x). I know this is a maclaurin series, but my work doesn't get the right answer. Can you please show steps? Also,do all power series start with a 1, as in (1+2x+4x^2+...)? Thanks in advance!
Thursday, March 8, 2012 at 9:39pm by W

calculus
state the power series of an appropriate familiar function and use it to calculate the power series of the given function. give answer in sigma notation. All power series have center at 0. f(x)=(e^(-x)^2) -1+(x^2) and g(x)=x cos (x/square root 3)
Monday, April 20, 2009 at 5:05pm by pervaiz

College Calculus (Binomial Series)
Expand f(x) = (x+x^2)/((1-x)^3) as a power series and use it to find the sum of series (SUM from n=1 to infinity) (n^2)/(2^n) PLEASE HELP.
Tuesday, April 8, 2008 at 9:13pm by Andrew

calculus
the question asks to use power series though. So i found the power series of ln(1-x) = Series of nx^n-1 and for e^x is the series of x^n/n! i then found the first three terms of each ln(1-x) = 1 + 2x +3x^2 e^x = 1 + x^2/2! + x^3?3! after multiply them i got 1 + 2x + (X^2/2!+3x...
Monday, August 1, 2011 at 9:15am by amber

Calculus
a) Find the Taylor series associated to f(x) = x^-2 at a = 1. Be sure to show the general term of the series. b) Find the radius of convergence of the series. c)Use Lagrange's Remainder Theorem to prove that for x in the interval of convergence with x > 1; the power series ...
Monday, August 8, 2011 at 8:30pm by laura

calculus
With power series, is an endpoint convergent if you plug it back into the original series, and get an alternating series that is conditionally convergent?
Wednesday, September 22, 2010 at 6:12pm by Bob

Calculus II
(a) Use differentiation to find power series representation for f(x)=1/(1+x)^2 What is the radius of convergence? (b) Use part (a) to find a power series for f(x)=1/(1+x)^3 (c) Use part (b) to find a power series for f(x)=x^2/(1+x)^3 I found part (a) which was Σ n=0 to &#...
Tuesday, November 16, 2010 at 11:21pm by Anonymous

Calculus
does infinite power series -1/n diverge? (i think so, because it is just the negative of the harmonic series)...? thank you!
Saturday, October 20, 2012 at 10:13am by Nikky

calculus
Use division of power series to find the first three terms of the Maclaurin series for y = sec x.
Monday, August 1, 2011 at 7:17pm by ami

Calculus
This is going to be pretty hard to show as text since it would be easier for me to post a picture of the question. The question has f(x) = x/4^2 - (2x^3)/4^4 + (3x^5)/4^6 + ... . I am trying to find out the value of f(2). There is a hint to differentiate the power series ...
Monday, October 4, 2010 at 9:22pm by Douglas

calculus
Use multiplication of power series to find the first three non-zero terms of the Maclaurin series of e^x ln(1 − x).
Monday, August 1, 2011 at 9:15am by amber

Calculus - Taylor #2
Find the Taylor series for f(x) centered at the given value of 'a'. (Assume that 'f' has a power series expansion. Do not show that Rn(x)-->0.) f(x) = x3, a = -1 and what i've done so far: f (x) = x^3 f ' (x) = 3x^2 f '' (x) = 6x^1 f ''' (x) = 6x f (-1) = -1 f ' (-1) = 3 f...
Saturday, July 28, 2007 at 1:02pm by COFFEE

College Calculus
Suppose the series An (from n=1 to INF) is known to be convergent. Prove that series 1/(An) (from n=1 to INF) is a divergent series. I have no idea what to do... please help!
Monday, March 24, 2008 at 8:05pm by Mandy

calculus
So, you're saying that when you separate an alternating series into two (odd and even) then the (-1)^n-1 goes away? And why did you make S1 negative, but not S2. And do i need to find the sum for S2 to answer the question? Because i only know how to find the sum of geometric ...
Sunday, July 31, 2011 at 8:12pm by amber

Calculus 2
The following function has a series of the form the sum from n=0 to infinity of c(subn)x^n. Calculate the coefficients c(subn) and express the power series in summation notation. f(x)=(pi*x)/(pi*x+1) Thank you so much for your help!!!!
Wednesday, November 28, 2012 at 11:48pm by Heather

Calculus
What is the radius of convergence of the power series (((2n)!x^(n))/((2n-1)!)), and what is its interval of convergence? I used the ratio test and found that the radius of convergence is 0, as it is impossible for the absolute value of infinity to be less than 1. I am not sure...
Thursday, October 31, 2013 at 2:39am by Win

Calculus
Represent f(x)= (e^x -1)/x as a power series.
Friday, December 3, 2010 at 1:08am by Linda

science
parallel, you get 10 watts. In series, if you double resistance (as in two in series, power=V^2/R, so power is halved in each, so you get a total of 5 watts
Tuesday, June 30, 2009 at 4:33pm by bobpursley

calculus
use the power series to estimate the series: from 0 to 4 of ln(1+x)dx with absolute value of the error less than .0001/ Give your estimate of the integral as well as a bound on the error. I found the 'terms' in the series to be: x-(1/2)x^2+(1/3)x^3-(1/4)x^4...... with a radius...
Tuesday, March 18, 2008 at 10:42pm by meg

calculus
use the power series to estimate the series: from 0 to 4 of ln(1+x)dx with absolute value of the error less than .0001/ Give your estimate of the integral as well as a bound on the error. I found the 'terms' in the series to be: x-(1/2)x^2+(1/3)x^3-(1/4)x^4...... with a radius...
Wednesday, March 19, 2008 at 6:52am by meg

power dissipation
What is the power dissipated by resistor R1 of the following circuit: two batteries in series (with values V1 = 20 volts and V2 = 20 volts) connected across three resistors in series with values R1 = 10k, R2 = 10k, and R3 = 20k im getting the answer 4 but i know its wrong. ...
Saturday, May 25, 2013 at 12:42am by Adam

Physics
In a series circuit, the power source is 9-volt battery and three resistors. R1=7ohm R2=9ohm R3=2ohm What is the total resistance in this series circuit? What is the current? Please help I don't understand this!, Thank you
Monday, March 10, 2014 at 11:38am by Cherie

calculus
write a power series for e to the 2x and find the interval of convergence
Sunday, January 3, 2010 at 10:32pm by bob

math - calculus BC
find a power series representation of: f(x)=((x^2)-1)*sin(x)
Sunday, March 17, 2013 at 1:49pm by Anonymous

Calculus
No, take a look at the definition of the Maclaurin series. It starts with f(0). very power series starts with the first term of its defined sequence. f = x/(1+2x) f' = 1/(1+2x)^2 f(2) = -4/(1+2x)^3 f(3) = 24/(1+2x)^4 f(4) = -192/(1+2x)^5 from then on it's just the power rule: ...
Thursday, March 8, 2012 at 8:21pm by Steve

Differential equation
Why do you call that a power series? It looks to me like a differential equation. Do you expect the solution to be a power series?
Saturday, August 13, 2011 at 7:11am by drwls

Calculus Infinite Geometric Series
You have missed some basic material. if r is between -1 and 1, the series converges, and you can get an infinite series sum If r is greater than 1, or less than -1, the series gets larger and larger, and diverges, and you cannot get a sum. Consider the series as 10+100+1000+...
Monday, September 19, 2011 at 8:27pm by bobpursley

Calculus 2
Calculate c(sub0), c(sub1), c(sub2), c(sub3), and c(sub4) for the power series the sum from n=0 to infinity of c(subn)x^n that represents f(x)=tanx. Use the first two nonzero terms of the series to approximate the tangent of 1/4 radian. Compare your approximation with the ...
Wednesday, November 28, 2012 at 9:19pm by Heather

calculus
im confused. I was taught that if it is an alternating series then you can only use the alternating series test to see if it was diverging or converging. And i did the alternating series test and all the conditions were met for each series seperately.
Sunday, July 31, 2011 at 8:12pm by amber

Calculus
Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y. (B) Can you choose the signs to make the series diverge? (C) Can you choose the signs to ...
Wednesday, April 21, 2010 at 5:51pm by Megan

calculus
Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y. (B) Can you choose the signs to make the series diverge? (C) Can you choose the signs to ...
Thursday, April 22, 2010 at 2:23am by Megan

calculus
Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and y from: x(</=)(+/-)3(+/-)1(+/-)(1/3)(+/-)...(</=)y. (B) Can you choose the signs to make the series diverge? (C) Can you choose the signs to ...
Thursday, April 22, 2010 at 9:54pm by Megan

Calculus
Determine the following about the series. Indicate the test that was used and justify your answer. Sigma (lower index n = 1; upper index infinity) [sin((2n-1)pi/2)]/n A. The series diverges B. The series converges conditionally. C. The series converges absolutely. D. It cannot...
Monday, February 11, 2013 at 6:06pm by Jenny

Calculus
If S1 = 0.7 and S2 = 2.1 in geometric series, what would the sum of the first 12 terms in the series be? I tried doing this, and I got 1.16 or something :S How exactly do I do this? Please tell me what formula to use. I was using the Sn = a(rn-1)/r-1
Tuesday, September 20, 2011 at 8:16pm by Anonymous

calculus repost, please assist pleassssssse
Hi Trying to work with confusing Taylor series....any assistance would be much appreciated!! How can I use T(x)=5-9((x-2)^2)-3((x-2)^3) to approximate the f(0) ???? I realize that Taylor series f(x)=f(a)+f'(a)(x-a)+f''(a)((x-a)^2)etc... but the above T(x) is centered at x=2, ...
Tuesday, March 15, 2011 at 8:43pm by kiksy

Calculus - - Reiny
If S1 = 0.7 and S2 = 2.1 in geometric series, what would the sum of the first 12 terms in the series be? I tried doing this, and I got 1.16 or something :S How exactly do I do this? Please tell me what formula to use. I was using the Sn = a(rn-1)/r-1
Tuesday, September 20, 2011 at 8:47pm by Anonymous

Calculus
By recognizing each series below as a Taylor series evaluated at a particular value of x, find the sum of each convergent series. A) 1+5 + (5^2)/(2!)+(5^3)/(3!)+(5^4)/(4!)+...+ (5^k)/(k!)+...= B) 1-(2^2)/(2!)+(2^4)/(4!)-(2^6)/(6!)+...+((-1)^(k)2^(2k))/((2k)!) +...=
Tuesday, June 18, 2013 at 10:24pm by Cole

Calculus
How can I prove this series alternating series converges(this is the answer)? (-1)^2*(2/3)^n I tried it this way: an = (2/3)^n, then i just broke it down. 2^n/(3^n) and i took the ratio of it and got 2/3 which does not equal to one which would mean the series diverges.. but ...
Friday, July 26, 2013 at 11:23pm by Isaac

Physics 103
Brightness means power. Power= V^2/R= I^2R in series, they have the same current. Which then has generates more power? In parallel, they have the same voltate, which has more power?
Sunday, February 7, 2010 at 12:22am by bobpursley

calculus
YOu are posting little work. Why don't you take the derivative of (3x)^.5 ? it is a straight power series y= u^n y'= n u^(n-1) du/dx If you cant do these, you need a tutor, it is as simple as it gets.
Sunday, February 6, 2011 at 3:18pm by bobpursley

Calculus!!!
I need your help... I've posted this question a while ago but no one has answered it yet. Please please help me. Which of the following series can be used to compute ln(.8)? a) ln(x-1) expanded about x=0 b) lnx about x=0 c) ln x in powers of (x-1) d) ln(x-1) in powers of (x-1...
Monday, March 19, 2007 at 9:19pm by Joan

Precalculus(NEED HELP ASAP PLEASE!!)
This is a standard formula. intensity=10log(power/thresholdhearing)
Sunday, March 7, 2010 at 6:32pm by bobpursley

Calc
We are working on finding the intervals of convergence of power series in class. Why do we not have to test for the convergence of the endpoints for geometric series? They always seem to diverge. Is this a set rule when working with the geometric series for this type of problem?
Thursday, December 1, 2011 at 8:10pm by Chloe

ASAP
can someone please make up an address and a phone number that i can use for my brochure? please. please. ASAP
Sunday, July 18, 2010 at 4:23am by office

Auburn University
Figure the resistance of each bulb. Power= V^2/R R= 120^2/95 Now that two are in series power total= V^2/2R= 95/2 power each= 95/4 watts.
Wednesday, March 9, 2011 at 9:32pm by bobpursley

Calculus
If 2 to the 1998 power - 2 to the 1997 power - 2 to the 1996 power + 2 to the 1995 power = k times 2 to the 1995 power, what is the value of k? (A) 1 (B) 2 (C) 3 (D) 4 (E) 5
Monday, October 1, 2007 at 8:04pm by Matt

Pre-Calculus/Calculus
I am too embarassed to ask this Calculus (really pre-calculus) question in tutoring, because I know I should know. Is the inverse of f(x)=3x-1 actually f(x)=1/3x+1? How do I find it? What if it asks the same equation replaced with f to the -1 power (x)? I think I know how the ...
Tuesday, July 1, 2008 at 10:38pm by Molly

Calculus
Obtain the MacLaurin series for 1/(2-x) by making an appropriate substitution into the MacLaurin series for 1/(1-x). ------------ The MacLaurin series for 1/(1-x) = Σ x^k I substitue (x-1) in for x, because 1/(2-x) = 1/(1-(x-1)) Making the same substitution in the ...
Thursday, June 25, 2009 at 7:55pm by Sean

calculus
Both the Taylor and MacLaurin series are power series. I don't know where you got your expansion for ln(1-x) but it is not correct. I tested my answer by picking any value of x I did x=.13 and the answer I got by doing e^xln(1-x) on the calculator came very close to the answer...
Monday, August 1, 2011 at 9:15am by Reiny

calculus
can someone please asap
Saturday, May 4, 2013 at 2:48pm by akash

Math(calculus)
Rewrite as Lim ln(1 + 1/n)/(1/n) (n -> infinity) Then use the power series for ln(1+x) for small x: ln(1 + 1/n) = 1/n -(1/2)(1/n)^2 +(1/3)(1/n)^3... Divide that by 1/n and you get 1 plus a series of higher order terms that become zero in the limit as n-> infinity. The ...
Sunday, February 5, 2012 at 1:15am by drwls

calculus
let f be the function f(x) = e^(2x^2) find the first four nonzero terms and the general term of the power series for f(x) about x = 0 i tried doing this problem but finding the derivatives gets way too complicated can anyone help??
Monday, March 24, 2008 at 10:54am by Anonymous

Calculus, series
That is a sequence, not a series. A sequence is an ordered list of terms. A series is a sum of terms, which may be terms in a sequence. so 1,5,1,5,1,5..... is a sequence but 1+5+1+5+1+5..... would be a series the pattern of your sequence could be said to be alternating 1 and 5
Wednesday, January 9, 2008 at 6:46pm by Damon

AED / ASAP PLEASE
my instryctor says It doesn't matter the age level. help please ASAP
Thursday, November 13, 2008 at 9:55pm by troyer0269

CALCULUS
find the radius and interval of convergence for the series the series from n=0 to infinity of ((-1)^n*x^n)/(n+1)
Tuesday, March 4, 2008 at 9:13pm by jane

Calculus, series
I cannot figure this out! What is the series (the Pattern) of this sequence? {1,5,1,5,1,5,1,5.......}
Wednesday, January 9, 2008 at 6:46pm by Candace

calculus
how do you find the sum of a series? for example: the series from n=0 to infinity of (-1)^n/n!??? thanks
Thursday, March 20, 2008 at 8:54pm by sarah

College Calculus (Binomial Series)
Taylor series is as follows: f(x)=f(a)+f'(a)(x-a)/1!+f''(a)(x-a)^2/2!+f'''(a)(x-a)^3/3!+...
Tuesday, April 8, 2008 at 9:13pm by FredR

CALCULUS-URGENT
find the radius and interval of convergence for the series the series from n=0 to infinity of ((-1)^n*x^n)/(n+1)
Tuesday, March 4, 2008 at 10:05pm by jane

calculus
From Taylor (Maclaurin series if starting at x =0) series f(x)=f(0) + f'(0)(x/1!) + f""(0)x^2/2!).... here f(x) = e^x f(0) = 1 the derivatives of e^x are all e^x which is 1 at x = 0 so e^x = 1 + 1(x/1!) +1(x^2/2! etc
Monday, May 31, 2010 at 8:19pm by Damon

calculus
what does this series, if it converges, converge to? the series from n=1 to infinity of (2^n + (-1)^n)/3^n
Monday, March 17, 2008 at 12:30am by sarah

calculus
"If the sequence An converges to 0, and each An is smaller than An-1 (i.e. the sequence An is monotone decreasing), then the series converges." In this case, An = 1 / (3n + 1) The limit as n->infinity (An) = 0 A1 = 1 / 4 A2 = 1 / 7 Therefore, by the Alternating Series Test ...
Thursday, February 28, 2008 at 10:55pm by Dan

calculus III
All of your series A, B and C are the MacLaurin series expansion for ln(1 +x), where x = 1. You are just doing the summation in a different order. The exact sum for the infinite series is ln(2) = 0.69315... I don't see the point of adding up 30 terms in different orders, but ...
Wednesday, October 13, 2010 at 12:01am by drwls

calc
f(x)=x^2/4+x^3 find the power series representation...so far i found ...Óx^2n+2/4^n...is dat correct?...nd then it is asking to find the radius and interval of convergence...i found the radius to be x^2/4...so i set the radius between -1 and 1...nd then solve for x...i got x ...
Saturday, May 5, 2007 at 2:59pm by amy

calculus
HuH? THe power series is eu= Σxu/n! from n=1 to inf So put in u (2x^2) and compute for n=1, ...4.
Monday, March 24, 2008 at 10:54am by bobpursley

CALCULUS-URGENT- no one will respond!!!
find the radius and interval of convergence for the series the series from n=0 to infinity of ((-1)^n*x^n)/(n+1)
Wednesday, March 5, 2008 at 12:08am by jane

Calculus 2
Hello, I don't know what test to use for this series: Determine the sum of the following series: inf E n=1 (2^n + 9^n) / 12^n thank you!
Friday, March 22, 2013 at 6:20pm by Tom

PRINTING ASAP
How do you print a doubled sided A5 booklet using Kodak 5217? I've tried the internet ...practically all websites!! has anyone got any insights?? •Printing ANYONE?? - asap!!, Monday, November 4, 2013 at 12:38pm PLEASE
Monday, November 4, 2013 at 12:43pm by asap!!

calculus
There is no single method to do them all. In the case of that series, it looks like the Taylor series for e^x when x = -1, so the answer is 1/e = 0.35935....
Thursday, March 20, 2008 at 8:54pm by drwls

college differential equations
Find two linearly independent power series solutions to the diffrential equation. State the first 3 therms of each series: 2x^2y''+xy'-(1+2x^2)y=0
Wednesday, July 28, 2010 at 11:09am by Justin

calculus
i have to determine whether the series is convergent, and if, find the sum the series is from k=1 to infinity of 2/((k+1)(k+3)) I got 5/6 as my answer and didn't know if it was right...
Thursday, February 21, 2008 at 6:15pm by sarah

Calculus - PLEASE HELP ASAP!!
I have a test tomorrow and i'm stuck on this question ):
Tuesday, March 20, 2012 at 8:56pm by Steph

Calculus
Show that the following series is absolutely convergent: Summation from 1 to infinity: [(-1)^n * (n+1) * 3^n]/ [2^(2n+1)] I've done the ratio test and replaced n in this series with n+1. I get 3/4 in the end, which is less than 1, which confirms that the series is abs. ...
Saturday, March 24, 2012 at 6:17pm by Anonymous

Physics
A circuit consists of a resistor of R=7 Ω, a capacitor of C=7 μF, and an ideal self-inductor of L=0.04 H. All three are in series with a power supply that generates an EMF of 5sin(ωt) Volt. The internal resistance of both the power supply and the inductor are ...
Wednesday, May 22, 2013 at 9:19pm by Annoyingmous

Calculus
ok I don't understand how this was done inergral(y2 and y1) pgywdy = 1/2 pgw(y2^2 - Y1^2) ok it's been a while sense calc I rember you add one to the power of the term that was a dervitative and divide by that power hence (1/2)(y2^2 - Y1^2) but what happened to the y term ...
Saturday, October 24, 2009 at 11:12pm by Calculus

Calculus
I assume you mean (-1)^n * (2/3)^n This is just a geometric series with r = -2/3 So, if you start with n=0, the sequence starts with 1, and Sum = 1/(1-r) = 1/(1+2/3) = 3/5 In an alternating series, if the ratio |r| < 1 it converges.
Friday, July 26, 2013 at 11:23pm by Steve

calculus
construct an isoceles triangle with an area of 100. what is the length of the base of the triangle which has the smallest perimeter? Prepping for a test, explanations please
Thursday, December 9, 2010 at 5:36pm by C-help please asap

calculus
You need to insert te upper limit in the series, the lower limit and then subtract. However, in this that doesn't work as the series doesn't converge at the upper limit. What you need to do is to write down the series that converges for x larger than one and the series that ...
Wednesday, March 19, 2008 at 6:52am by Count Iblis

Calculus
Please.... I need your help! I posted this question yesterday and no one has answered it yet. Can anyone help me please? My question was: The Taylor series about x=5 for a certain function f converges to f(x) for all x in the interval of convergence. The nth derivative of f at...
Sunday, March 18, 2007 at 11:44am by Steven

Health
1 Select the skill-related component which is defined as the ability to perform a combination of movements with different parts of your body? A-Balance B-coordination*** C-power D-speed Please help! ASAP!
Tuesday, January 28, 2014 at 11:10am by Jenna

diffrential equations
Find two linearly independent power series solutions to the diffrential equation. State the first 3 therms of each series: 2x^2y''+xy'-(1+2x^2)y=0
Wednesday, July 28, 2010 at 3:39pm by Jay

calculus
Consider ∞ ∑ [(3k+5)/(k²-2k)]ᵖ, for each p ∈ ℝ. k=3 Show this series { converges if p > 1 { diverges if p ≤ 1 Hint: Determine the known series whose terms past the second give an approximate match for the terms of this series. This series...
Saturday, August 6, 2011 at 10:58am by Bernie

MS SUE PLEASE HELP ME ASAP!!!!!
I NEED HELP PLZ ASAP!!!!
Wednesday, November 20, 2013 at 8:19pm by recon sniper

south carolina history help me ASAP PLZZZZZ
this is the last please help me asap!!!!!
Wednesday, November 20, 2013 at 8:38pm by recon sniper

calculus
I need help understanding how the series of e derives into the exponential series using the binomial theorem. Here is a link to a pic of a page in my book, regarding the exponential series: ht tp://i46.tiny pic(.)(com)/qz0oat . jpg (remove parentheses and spaces) A couple of ...
Saturday, June 5, 2010 at 8:56pm by Jimmy

Please answer my Misc. Question Asap!!!!!!!!
asap!!!!!!!!!! How rude. We are volunteers, and adults.
Sunday, December 3, 2006 at 12:12pm by Marie

MGT HELP ASAP
ok these are the wrong questions to this..... These are the right ones for this now.. HELP ME PLease ASAP
Wednesday, November 19, 2008 at 8:22pm by troyer0269

Calculus Test Question ASAP
The graph of y = cos x is concave down on which interval? (-pi,0)??????? please help!!!!
Tuesday, October 30, 2007 at 6:17pm by Matt

socials
asap please
Sunday, February 27, 2011 at 4:39pm by james jackson asap please

Physics II
Three identical resistors are connected in series. When a certain potential difference is applied across the combination, the total power dissipated is 18.0 W. What power would be dissipated if the three resistors were connected in parallel across the same potential difference...
Thursday, July 5, 2007 at 9:25pm by Tifani

chemistry
Hydrogen exhibits several series of line spectra in different spectral regions. For example the Lyman series (nf = 1 in Balmer-Rydberg equation) occurs in the ultraviolet region while the Balmer (nf = 2) series occurs in the visible range and the Paschen (nf = 3), Brackett (nf...
Sunday, November 10, 2013 at 3:39pm by a.m

calculus
Find the indefinite integral of 1-tanx/1+tanx Dont know how to really approach this question. Should i use identities, or is there a power series i can use?
Saturday, July 30, 2011 at 1:46pm by integral

calculus
Log(e^2 + 1/10) = Log(e^2) + Log[1+e^(-2)/10] We can compute this using the series expansion: Log(1+x) = x - x^2/2 + x^3/3 - x^4/4 + ... But we can speed up the convergence of the series as follows. Replacing x by -x in the series gives: Log(1-x) = -x - x^2/2 - x^3/3 - x^4/4...
Sunday, June 16, 2013 at 6:51pm by Count Iblis

calculus
It is not clear without sufficient parentheses what the expression really is. I assume it to be: Sum((-1)^n * (3/3^n)) for n=0 -> ∞ This is an alternating geometric series. (9/2) is the correct sum for the geometric series (non-alternating). Write out the first few ...
Tuesday, September 7, 2010 at 8:10pm by MathMate

Calculus
If you have a geometric alternating series, and you prove that the series is converging by doing geometric series test, and NOT alternating series test, then does that allow you to say that the series converges ABSOLUTELY? Or should you do alternate series test also to say ...
Sunday, March 4, 2007 at 7:29pm by Jin

calculus
test the series for convergence or divergence the series from n=1 to infinity of 1/(arctan(2n)) I again didn't know what test to use
Sunday, March 16, 2008 at 2:59pm by lila

Calculus
Consider an infinite series of the form (+-)3(+-)1(+-)1/3(+-)1/9(+-)1/27(+-)....(+-)1/3^n(+-)... The number 3,1, etc. are given but you will decide what the signs should be. a)Can you choose the signs to make the series diverge? B)Can you choose the signs to make the series ...
Monday, November 12, 2012 at 4:32pm by oci

calculus
test the series for convergence or divergence the series from n=0 to infinity of (x^2+1)/(x^3+1) I said that due to the limit comparison test this converges at 1
Sunday, March 16, 2008 at 2:57pm by lila

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