Number of results: 29,199
Calculus - Partial Fractions
What is the integral of 7e^(7t) Divided By e^14t+13e^7t+36 Using partial fractions
Friday, March 14, 2008 at 8:54am by Sean
Calculus - Integration
I came across this problem in my homework, and I was wondering if partial fractions would be rational for this problem. Int [(2x)/((x^2)^2)]dx If I don't use partial fractions, what would I use?
Friday, May 9, 2008 at 4:11pm by Sean
Calculus (Partial Fractions)
My Calculus class just started Partial Fractions, and I understand MOST of it. I'm having a slight problem though, when either C, or C and D come in. I understand A/(something) + B/(something) But I become confused when it's either A/(something) + B/(something) + C/(...
Sunday, February 24, 2008 at 3:25pm by Sean
Calc II
Perform long division on the integrand, write the proper fraction as a sum of partial fractions, and evaluate the integral: (integral of) 2y^4dy/y^3 - y^2 + y - 1 After long divison I get: (integral of)2ydy + 2(integral of)dy + (integral of) 2/y^3 - y^2 + y - 1 I keep getting ...
Sunday, December 6, 2009 at 10:08pm by Jenna
Binomial
Help me on this one :( Express y= (7-3x-x^2)/[((1-x)^2)(2+x)] in partial fractions. Hence, prove that if x^3 and higher powers of x may be neglected, then y=(1/8)(28+30x+41x^2) I did the first part of expressing it in partial fractions. (Since it's very difficult to type ...
Wednesday, March 3, 2010 at 10:24am by Keira
Calculus- math
Can you do this with partial fractions?
Monday, May 3, 2010 at 7:19pm by bobpursley
Calculus - Partial Fractions
Thank you so much.
Friday, March 14, 2008 at 8:54am by Sean
Math- Partial Fractions
Decompose the following into partial fractions after factoring the denominator as much as possible. Please show some work so I can understand how you did it. 1)x^2/((x-1)(x^2+5x+4)) 2)(3x^3-5x^2+12x+4)/(x^4-16) 3)1/(x^2 (x+1)^2 ) 4)(x+1)/((x^2+1) 〖(x-1)〗^2
Thursday, April 4, 2013 at 11:24am by Chris
calculus
I would start with partial fractions.
Monday, February 16, 2009 at 12:49pm by bobpursley
Calculus - Partial Fractions
I would let my calculator do the gaussian reduction.
Monday, March 24, 2008 at 10:02pm by bobpursley
Calculus - Partial Fractions
t = Log(x)/7 ----> x = exp(7 t)
Friday, March 14, 2008 at 8:54am by Count Iblis
Calculus
does this help? sqrt [16/(5-t)(t+4)] dt can you use partial fractions on that?
Thursday, February 14, 2008 at 7:12am by bobpursley
calculus
Find the partial fractions for (3x^2-7x+12)/(x-2)(x^2-2x+5)
Wednesday, March 6, 2013 at 5:46pm by Joseph79
calculus
use partial fractions: x/(x+1)^2 + 4 = 1/(x+1) - 1/(x+1)^2 + 4 Integral is just ln(x+1) + 1/(x+1) + 4x
Wednesday, December 7, 2011 at 3:50pm by Anonymous
calculus
Decompose 58-x/x^2-6x-16 into partial fractions.
Sunday, May 15, 2011 at 8:19pm by Eileen
calculus
integrate (x+2)/((x^2+2x+4)^2) the usual partial fractions dont work???
Monday, March 3, 2008 at 4:31pm by matt
Calculus - Partial Fractions
I'm sorry. I forgot to say that I don't know how to solve for A, B, C, D, and E... Help there would be appreciated.
Monday, March 24, 2008 at 10:02pm by David
calculus
how to you use partial fractions to compute the integral of ax/((x^2)-bx)dx?
Sunday, March 16, 2008 at 6:51pm by mika
Calculus - Partial Fractions
I've reached the last step of (7/5) ln((x+4)/(x+9) But how do I substitute the variable 't' back in?
Friday, March 14, 2008 at 8:54am by Sean
Calculus (Partial Fractions)
Okay. Example. If the Denominator is x^4 - 2x^2 - 8 > (x-2) (x+2) (x^2+2) Would I do A + B + C, or A + B + (Cx + D)?
Sunday, February 24, 2008 at 3:25pm by Anonymous
Calculus
Find the integral of x/ (x^4+x^2+1) from 2 to 3. I was going to integrate using the method for partial fractions but I can't factor x^4+x^2+1.
Saturday, January 22, 2011 at 8:11pm by Rachel
Calculus - Integrals
Could you expand on #1 a bit more? I tried Partial Fractions, but I couldn't get a definite answer...
Sunday, March 23, 2008 at 12:12pm by David
Calculus - Partial Integrals
Hi David, If I give you the answer (I just verified that it is correct): (s+1)/[(s^2+1)(s-1)^3] = 1/(s-1)^3 - 1/2 1/(s-1)^2 + 1/2 1/(s^2+1) Can you verify that adding up the partial fractions yields the original fraction? Can you extract your A, B, C, etc. from the solution ...
Tuesday, March 25, 2008 at 7:19am by Count Iblis
partial fractions
The problem here is that the partial expansion looks like: A + B/(x-2) + C/x
Wednesday, July 20, 2011 at 11:44am by Count Iblis
Algebra-Partial Fractions
Usually partial fractions have two or more different factors in the denominator. Yours is not the typical style Here is a nice page that explains the regular kind and the method in very simple language. http://www4.ncsu.edu/unity/lockers/users/f/felder/public/kenny/papers/...
Monday, November 19, 2007 at 7:32pm by Reiny
Calc easy
Having trouble getting the correct solution. The integral of “x squared” in the numerator and “x squared plus x minus 6” in the denominator. S X2 / (X2 + x – 6) dx Thanks! That's a messy one. According to my table of integrals. The answer is -x/6...
Friday, February 23, 2007 at 9:05am by Ang
Calculus - Integrals
I'm not quite sure about your explanation on Partial Fractions... And Liouville's Therom. We haven't done that in class... so...
Monday, March 24, 2008 at 12:53pm by David
Calculus (Partial Fractions)
Reiny. You misunderstood. And I didn't word it right. I meant where does (Cx + D)/Something Pop up?
Sunday, February 24, 2008 at 3:25pm by Sean
Calculus B
The Antiderivative of: (2x+3)/((x^3)+3x) This one is devinately integration by partial fractions but im not sure what i am doing wrong. PLEASE HELP.
Monday, March 28, 2011 at 8:26pm by Brandon
maths
did you mean (x^4 - 16)/(x^3 - 8) ? , then = (x+2)(x-2)/((x-2)(x^2 + 2x + 4)) = (x+2)/(x^2 + 2x + 4) , x ≠ 2 In the process of partial fractions, the denominator usually factors into rational factors. Your denominator does not factor. So unless we use complex number ...
Monday, February 6, 2012 at 3:55am by Reiny
algebra
First, factor out the v in the (5v)/(v^3-5v^2+6v)) term. That will leave you with 5/(v^2-5v+6) = 5/[(v-2)(v-3)] Then use the method of partial fractions to rewrite that as A/(v-2) + B/(v-3) Determine the values of the constants A and B, and then combine with the last two terms...
Sunday, March 21, 2010 at 7:56pm by drwls
calculus
what is the integral of (x^2-x+6)/(x^3-3x)? the process involves partial fractions, and the answer is supposed to include ln and arctan... i just dont know how to get there.
Sunday, March 2, 2008 at 5:15pm by belinda
calculus
what is the integral of x^2-x+6/x^3-3x? the process involves partial fractions, and the answer is supposed to include ln and arctan... i just dont know how to get there.
Saturday, March 1, 2008 at 8:39pm by belinda
calculus
find the exact length of the curve y = ln(1-x^2), 0 <= x <= (1/2) So by doing the work I eventually get down to integral from 0 to 1/2 (1 + x^2)/(1-x^2) dx but I keep getting -1 + 1/(x-1) - 1/(x+1) after partial fractions which gives the answer ln(1/3) - 1/2 when...
Wednesday, March 13, 2013 at 3:46am by Daniel
Math
I explained this yesterday. You use the method of partial fractions, to rewrite 1/(q^2-v^2) as the sum of terms with (q+v)and (q-v) in the denominator. When you integrate those two separate terms, you get the difference of two log terms. Look up the method in your text or ...
Saturday, December 8, 2007 at 11:49pm by drwls
calculus
With partial fractions. Use the method we have shown you in some of your previous questions A/(x-2) + B/(x+3) + C(x-5) = 30x^2/[(x-2)(x+3)(x-5)] = A(x+3)(x-5)+B(x-2)(x-5)+C(x-2)(x+3)/[(x-2)(x+3)(x-5)] Solve for A, B and c and integrate the separate terms
Tuesday, February 17, 2009 at 12:19am by drwls
Calculus AB
Please help me integrate this equation using partial fractions: Integrate [(x^2+5)/(x^3-x^2+x+3)]dx. Thank you very much.
Sunday, June 5, 2011 at 11:58pm by JAE92
Maths-Integration by Partial Fraction
Use integration by partial fractions to find Integral (3x^2-x+2)/(x-1)(x^2+1) dx
Wednesday, December 12, 2012 at 6:15pm by Anonymous
calculus
I did do the sum and difference of the cubes and got these as my partial fractions: A / (x+1) Bx + C / (x^2-x+1) D / (x-1) Ex + F / (x^2+x+1) I got the answer for A = -1/6 and D = 1/6. But I was having trouble with the other variables...
Thursday, January 22, 2009 at 9:30pm by Liz
Calculus - Partial Fractions
Would anybody mind showing it out? I tried what Count Iblis said, but it didn't really work out well...
Monday, March 24, 2008 at 10:02pm by David
Math/Calculus
How would I integrate the following: (2x^2 + 5)/((x^2+1)(x^2+4))dx I think I would start with making it a sum of two partial fractions.
Tuesday, May 29, 2007 at 12:51am by COFFEE
Calculus
Integral of x sq/(1+x sq) dx I am not sure how to do this, am i supposed to do partial fractions to break it up? Or is it just some simple substitution?
Monday, December 7, 2009 at 1:36pm by O_o Rion
Calculus - Partial Fractions
It's easier to substitute for s the values that make the denominators zero and then demand equalty. You then get simpler equations than comparing the coefficients of equal powers of s on both sides.
Monday, March 24, 2008 at 10:02pm by Count Iblis
calculus
how do you evauste the intergral intergral (2x^4-2x^3+6x^2-5x+1)/(x^3-x^2+x-1)dx using partial fractions method?
Wednesday, August 6, 2008 at 10:42am by Ann
Calculus (Partial Fractions)
When you have a quadratic that does not have real roots in the denominator (complex roots only), you put Cx+D in the numerator. like if your denominator were (x-1)(x+1)(x-2) you might use A/(x-1) + B/(x+1) +C/(x-2) But if your denominator were: (x-1)(x^2-2x+2) You could deal ...
Sunday, February 24, 2008 at 3:25pm by Damon
Algebra-Partial Fractions
Can you please help me with the following questions please, I dont understand them. I know the general rule about them. Write the partial fraction decomposition of the rational expression. (x^2+4x-1)/(x^2+3)^2 (4x^3+4x^2)/(x^2+5)^2
Monday, November 19, 2007 at 7:32pm by Soly
Partial Decompostion Fractions
Can you please help me with the following questions please, I dont understand them. I know the general rule about them. Write the partial fraction decomposition of the rational expression. (x^2+4x-1)/(x^2+3)^2 (4x^3+4x^2)/(x^2+5)^2
Saturday, November 17, 2007 at 9:34pm by Soly
Math
Calculate the integrals by partial fractions and using the indicated substitution. Show the results you get are the same. dx/1-x^2; substitution x= sin pheta I understand how to do the partial fraction part, but not the second part and I dont know how they are similar. Any ...
Monday, February 25, 2008 at 3:52am by Jessica
partial fractions
(7x^2-16)/(x^2-2x) solve by using partial fraction decomposition. i cant figure out how to do this because after i split up the bottom the A and B dont end up having an x^2 in order to equal the numerator of the original fraction. so confused!
Wednesday, July 20, 2011 at 11:44am by gabs
calculus
- tried integration by parts, but got messy - tried partial fractions, looked even messier. - so I tried my trusty old DOS program from the 70's and got -√(x^2 + 4)/(4x)
Monday, February 16, 2009 at 12:48pm by Reiny
calculus
I am working on this problem and having some trouble. We're supposed to use partial fractions. The problem is: integral of dx / (x^6-1) . I got the values of A and D, but I am having trouble with the others. Help please!
Thursday, January 22, 2009 at 9:30pm by Liz
chemistry
When determining partial negatives and partial positives, does the partial postive go with the more electronegative atom? Ex: C=O, the polarity arrow goes toward the O because its more electronegative than the C but which atom gets the partial negative and which has the ...
Wednesday, October 3, 2007 at 9:23am by AMY
calculus
since x^3+2x^2-3x = x(x+3)(x-2), use partial fractions to get an equivalent: 3/(4(x-1)) - 2/(3x) - 1/(12(x+3)) That easily integrate into 3/4 log(x-1) - 2/3 log(x) - 1/12 log(x+3) which you can massage as you will.
Wednesday, February 20, 2013 at 12:46am by Steve
Maths
If z=(x^n) f(x/y), where f is an arbitrary function, show that: x(partial z/partial x) + y (partial z / partial y) = nz Can someone please show me how to work it out? Thanks!
Wednesday, February 3, 2010 at 10:31am by Claire
Calculus AB
I had to integrate [(x^2+1)/(x^2-x)]dx with partial fractions. My answer was 2ln abs(x-1) -ln abs(x)+C. But the answer on the answer sheet has an extra +x that I did not account for. Is that a typo or did I integrate incorrectly?
Monday, June 6, 2011 at 2:28am by JAE92
calculus
find the second-order partial derivatives of f(x,y)=x^3 + x^2y^2 + y^3 + x+y and show that the mixed partial derivatives fxy and fyx are equal
Wednesday, March 7, 2012 at 11:10am by maggie
calculus
find the second-order partial derivatives of f(x,y)=x^3 + x^2y^2 + y^3 + x+y and show that the mixed partial derivatives fxy and fyx are equal
Wednesday, March 7, 2012 at 11:06am by maggie
Calculus - Partial Fractions
I've set a problem up, something like this. s^4: A+D=0 s^3: -2A+B-3D+E=0 s^2: 2A-B+C+3D-3E=0 s^1: -2A+B-D+3E=4 s^0: A+C-E=4
Monday, March 24, 2008 at 10:02pm by David
Calculus (Partial Fractions)
Wow. I'm making this topic last a while. I think- and this is just out loud- that you would do (Cx + D) Over the X^2 + 2? Am I getting that right? OR You have Cx + D over something if the SOMETHING has a term of X to a power greater than one?
Sunday, February 24, 2008 at 3:25pm by Sean
CALC 2 - Partial Functions!!
How do I solve Integral of 7/(16-x^2) I know I must break down (16-x^2) into (x+4)(-x+4), but after I do that what is next? Using the method of partial fractions, convince yourself that 7/(16-x^2)= (7/8)*[1/(4+x) + 1/(4-x)] The two additive terms can be integrated by the ...
Wednesday, June 13, 2007 at 1:06am by Ace
Chem/math question - from Sam
Your answer to a is correct IF the unit is atmospheres. b. Set up at ICE chart. Initial: pressure PCl5 = 1.263 atm partial p PCl3 = 0 partial p Cl2 = 0 change: partial p PCl3 = +y partial p Cl2 = y partial pressure PCl5 = -y equilibrium pressures: add the columns to obtain ...
Thursday, January 15, 2009 at 8:43pm by DrBob222
maths
express x-1/(x+1)(x-2)^2 into partial fractions
Thursday, February 16, 2012 at 5:19am by chrystabelle
plz integrate
I would do partial fractions.
Wednesday, October 8, 2008 at 7:22pm by bobpursley
calculus
I assume you have trouble doing the partial fractions, not the integration? x^3-x^2-2x = x(x-2)(x+1) so, what you are looking for is a combination of fractions A/x + B/(x-2) + C/(x+1) which when placed over a common denominator of (x^3-x^2-2x) make a numerator of (4x^2-3x+2). ...
Tuesday, December 4, 2012 at 12:47pm by Steve
Calculus (Partial Fractions)
This method has practical applications only if the denominator factors. Since you don't give an example I will supply one separate (5x^2+3x+4)/(x^3+x^2-2x) (I started with known fractions and simplified, so that I would have a question that worked out) The bottom factors ...
Sunday, February 24, 2008 at 3:25pm by Reiny
maths
Evaluate using partial fractions x^4 - 16/x^3 - 8
Monday, February 6, 2012 at 3:55am by victor.m
chemistry
The time dependent concentration of solute particles in a solution is given by c(r, t) = [n/8(pi D t)^(3/2)] e^(-r^2 /4 D t) where r^2 = x^2 + y^2 + z^2 with x, y, and z being the values of three components of the position in the Cartesian coordinate system. a) Show that the ...
Wednesday, December 2, 2009 at 3:45am by drifting
pre-calc
Jo or John very messy problem your denominator is factored correctly your answer to your long division is indeed x^2 + 4x + 14 but you don't say what that remainder is, because it is the remainder that you have to work with. so you are working with remainder/[(x+1)(x-1)^2(...
Friday, May 29, 2009 at 6:40pm by Reiny
Maths- Integration by partial fractions
Integral (3x^2-x+2)/(x-1)(x^2+1) dx
Wednesday, December 12, 2012 at 6:10pm by Anonymous
maths
Resolve 3x/x^2-x-12 into partial fractions
Thursday, March 22, 2012 at 6:26am by daka
Maths
Resolve into partial fractions: (x+3)(x+1)/ x(x^2+x+1) Can anyone please help me out?
Thursday, November 15, 2007 at 12:46pm by Claire
calculus
INTEGRATION USING PARTIAL FRACTIONS a) 4x^2-3x+2 / x^3-x^2-2x dx b) x^2 / (x+1)(x+1)^2 dx c) 3-3x / 2x^2+6x dx d) x^2+2x-1 / (x^2+1)(x-1) dx ##anybody can help me for this question?
Tuesday, December 4, 2012 at 12:47pm by kchik
calculus
the length of curve = integral [ √(1 + (dy/dx)^2) from 0 to 1/2 dy/dx = -2x/(1-x^2) = 2x/(x^2-1) which I separated into 1/(x+1) + 1/(x-1) using partial fractions. we now have to square this, add it to one and take the square root. Perhaps you tried to split it into ...
Wednesday, March 13, 2013 at 3:46am by Reiny
Mathematics
The simplest way to do this is as follows. We have f(x) = (2x^4-2x^3+x)/((2x-1)^2(x-2)) and want to write f(x) in partial fractions. Now, each partial fraction is a term like 1/(a + b x) and then it is clear where this function has a singularity. If you then expand the ...
Wednesday, October 1, 2008 at 6:25pm by Count Iblis
pre-calc
I dont understand how to convert the partial fractions into a system
Friday, May 29, 2009 at 6:40pm by jo
chemistry
Partial pressures are additive. So, total pressure - partial pressure of Hg = partial pressure of nitrogen. Use PV = nRT (using nitrogen's partial pressure) to find volume.
Thursday, March 24, 2011 at 7:36am by Liz
math
using method of partial fractions to decompose this 1/(x-3)(x+3) is 1/6(x-3)-1/6(x+3) correct or have i gone wrong somewhere
Saturday, October 24, 2009 at 5:12pm by mousey
calculus
messy, are you sure you typed correctly? I was hoping the bottom would factor so I could use partial fractions. the way it stands I ran it through an integration program to get (√10/10)[tan -1 [√10(x+1)/5] are you working at that sophisticated level of ...
Sunday, January 6, 2008 at 11:30pm by Reiny
calculus
for (6x+7)/(x^(2)-8x+25) the denominator does not have rational factors, so complete squares to get into the form (x^2+a^2) and integrate using atan. Hints: 1. x^2-8x+25=(x-4)^2+3^2 2. you will need to split the expression into partial fractions, one of which will integrate ...
Tuesday, November 29, 2011 at 8:22am by MathMate
Math
By the method of the fractions partial determine the function f (t) of the following functions F (s). F(s)= s^2+7s+12/(s+2)(s+4)(s+6) F(s)= (s+3)(s+6)/s(s^2+10s+24) F(s)= 5(s+2)^2/s(s+1)^3 F(s)= s+6/s(s+1)^2 F(s)= 27/(s+1)^3(s+4)
Sunday, March 4, 2012 at 11:10pm by SILVA
MATHMATICS
I assume you mean partial products. Yes. However, the fractions are tough to type on screen, and very difficult to follow.
Tuesday, September 11, 2007 at 9:17pm by bobpursley
calculus
Assuming that: Definite Integral of e^(-x^2) dx over [0,infinity] = sqrt(pi)/2 Solve for Definite Integral of e^(-ax^2) dx over [-infinity,infinity] I don't know how to approach the new "a" term. I can't use u-substitution, integration by parts, partial ...
Monday, January 14, 2008 at 1:46pm by mathstudent
calculus
evaluate integral or state that it is diverges integral -oo, -2 [2/(x^2-1)] dx ----------------------------------- integral -oo, -2 [2/(x^2-1)] dx Through partial fractions, I came up with lim [ln(x-1)-ln(x+1)] b, -2 b->-oo I get (ln(3)-0)-(oo-oo)). The answer in the ...
Monday, February 11, 2008 at 3:41pm by Anonymous
Calculus - Integrals
I made this question, just wanted to make sure it didn't drown under the tide... I've set a problem up, something like this. s^4: A+D=0 s^3: -2A+B-3D+E=0 s^2: 2A-B+C+3D-3E=0 s^1: -2A+B-D+3E=4 s^0: A+C-E=4 Count Iblis -It's easier to substitute for s the values that...
Tuesday, March 25, 2008 at 9:43pm by David
chem
Dalton's law of partial pressures says that the total pressure equals the sum of the partial pressures of each gas in the container. If the partial pressure of air is 762 and the total is 800, then the partial pressure of ethanol is >>
Monday, April 28, 2008 at 3:51pm by DrBob222
Mathematics
Thanks you kindly. Express (2x^2-5x-5)/((2x^2+5)(4x-5)) in partial fractions.
Wednesday, October 1, 2008 at 6:14pm by WarmLingQi
Calculus - Integrals
Well, I think you just need to look at a simpler case. The algebra may sometimes obscue things. Also, you don't need to understand Lioville's theorem. Also, you don't need to stick to what you've been taught in class. All you need to do is pick up a piece of ...
Monday, March 24, 2008 at 12:53pm by Count Iblis
Calc
integral (x^3)/(x^2-2x+1) from -1 to 0 How do you get this integral? I was doing partial fractions and got A/(x-1)+B/(x-1), A+B=x^3, but that should equal 0 so where do I go from there?
Sunday, March 3, 2013 at 11:30pm by Anonymous
Calculus
State the growth factor in each of the following situations. Newspaper readership is declining by 7 1/3 % per year. A bouncing ball rebounds to 1/3 of its previous height. Dont know how to solve these fractions:\ I just hate working with fractions.
Wednesday, September 21, 2011 at 5:40pm by Anonymous
Precalculus
First, check the degree of the numerator and the denominator. If the degree of the numerator is higher than that of the denominator, do a long division to reduce the expression to a proper fraction. Degree of numerator = 3 Degree of denominator = 2+3 = 5 No long division is ...
Tuesday, February 23, 2010 at 12:25am by MathMate
calculus
I think you mean partial fractions. That is what this method was called when I went to school. First factor the denominator. (5x+1)/(x^2-x-12) = (5x+1)/[(x-4)(x+3)] This can be written as A/(x-4) + B/(x+3) where A and B are certain constants. Here is how you can solve for A ...
Friday, December 31, 2010 at 12:55am by drwls
calculus
a)find the first partial derivatives of f(x y)= x √1+y^2 b)find the first partial derivatives of f(x,y)= e^x ln y at the point (0,e)
Sunday, March 11, 2012 at 1:00pm by maria
chemistry
the original partial pressures of He, Ne, and Ar have been cut in half the partial pressure of CO2 is three times that of Ne all four gases have equal partial pressures the partial pressure of Ar has doubled
Friday, April 18, 2008 at 1:08pm by Sam
chemistry
a. the original partial pressures of He, Ne, and Ar have been cut in half b. the partial pressure of CO2 is three times that of Ne c. all four gases have equal partial pressures d. the partial pressure of Ar has doubled
Friday, April 18, 2008 at 1:08pm by Sam
Calculus - Partial Fractions
Substitute t = Log(x)/7 Integral is then proportional to: Integral of dx/[x^2 + 13 x + 36] = Integral of dx/[(x+4)(x+9)] 1/[(x+4)(x+9)] = A/(x+4) + B/(x+9) Multiply both sides by x+4 and take limit x to -4: 1/5 = A Multiply both sides by x+9 and take limit x to -9: 1/5 = A -1/...
Friday, March 14, 2008 at 8:54am by Count Iblis
Chemistry
Keq is a number, evaluated experimentally. The Keq expression is (partial pressure of products)/(partial pressure of reactants) and raise each one to the power indicated by the coefficient. Here is the one as an example. I shall be happy to check your work for the others. Kp...
Sunday, March 9, 2008 at 11:07pm by DrBob222
math
Express (5x+2)/(2x-1)(x+1) into partial fractions and hence expand the expression as a series in ascending power of x giving the first 4 terms
Thursday, April 25, 2013 at 7:04am by mel gibbs
calculus
Since both r and h are changing with time, you need to use the partial derivative relationship dV/dt = dV/dh*dh/dt + dV/dr*dr/dt where dV/dh and dV/dr are partial derivatives. They should use a "lazy d" symbol that I cannot type here. When computing a partial ...
Thursday, March 6, 2008 at 9:37pm by drwls
CALCULUS
s = ∫[0,1/2] ds = ∫[0,1/2] √(1+y'^2) dx = ∫[0,1/2] √(1+(2x/(x^2-1))^2) dx = ∫[0,1/2] (x^2+1)/(x^2-1) dx now use partial fractions to get = ∫[0,1/2] 1 + 1/(x-1) - 1/(x+1) dx = (x + ln|x-1| - ln|x+1|) [0,1...
Friday, November 16, 2012 at 2:11am by Steve
Chemistry
Heat Capacity at constant volume: CV = (partial q / partial T) with V constant since volume is constant, work is zero and dq = dU, so CV = (partial U / partial T) with V constant Delta U = CV * Delta T Does this final relationship hold during a reaction where volume is NOT ...
Wednesday, March 4, 2009 at 10:25pm by jake
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