Friday

January 30, 2015

January 30, 2015

Number of results: 6,576

**Maths-Integration by Partial Fraction**

Use integration by partial fractions to find Integral (3x^2-x+2)/(x-1)(x^2+1) dx
*December 12, 2012 by Anonymous*

**Integration**

1. [integration] (3x+7sin(x))^2 dx i tried 3 different methods of integration but all of my answers are wrong. 2. [Integration]from 0 to 5 (3w-3)/(w+6)dw i divided the numerator by the denominator and then tried to solve the question but im getting the wrong answer.
*November 2, 2010 by AY*

**calculus **

reverse the order of integration integration 1-e integration 0-lnx dy dx
*January 12, 2012 by ali*

**Maths**

what is the integration of dx/Cos^4(x)
*September 7, 2011 by Deepak*

**calc**

evaluate the integral: y lny dy i know it's integration by parts but i get confused once you have to do it the second time Leibnitz rule (a.k.a. product rule): d(fg) = f dg + g df y lny dy = d[y^2/2 ln(y)] - y/2 dy ----> Integral of y lny dy = y^2/2 ln(y) - y^2/4 + const. ...
*May 23, 2007 by marsha*

**Competetion help on Integration**

If there four options are given to a Defenite Integration then what shortcut trick we should choose to get the correct answer. Like in Indefinte Integration we find the differtation of the answer to reach the function given to integrate. You can try to eliminate some answers ...
*February 12, 2007 by Nitin*

**maths**

use an iterated integral to find area of region bounded by graphs sin(x) and cos(x) between x=pi/4 and x=5*pi/4 but using HORIZONTAL strips.(i.e dxdy is order of integration for the double integral). it has been suggested by a textbook that this is a formidable task. easy ...
*August 13, 2010 by arron hamilton*

**culteral Diversity**

In Milton Gorton's theory of assimilation, the crucial step is from a. Integration to acculteration b. Acculteration to integration c. Assimilation to plurism d. Anglo-conformity to the melting pot e. Integration to intermarriage
*December 19, 2009 by Andrea*

**Maths - Integration by parts**

Integral x^2 sin(x) dx
*November 7, 2012 by Anonymous*

**Maths- Integration by partial fractions**

Integral (3x^2-x+2)/(x-1)(x^2+1) dx
*December 12, 2012 by Anonymous*

**calculus**

The following definite integral can be evaluated by subtracting F(B) - F(A), where F(B) and F(A) are found from substituting the limits of integration. \int_{0}^{4} \frac{1600 x +1200 }{(2 x^2 +3 x +1)^5}dx After substitution, the upper limit of integration (B) is : and the ...
*March 8, 2014 by ricky*

**Maths -Integration by parts**

Intergral square root of x sin(x) dx
*November 7, 2012 by Anonymous*

**maths**

integration of upperlimit 1and lower limit -1 the function 2x+3/(x^3=3x +4)dx
*March 13, 2013 by Anonymous*

**Maths - Integration by parts**

Use the partial ractions to find The integral (3x^2-x+2)/(x-1)(x^2+1) dx
*December 12, 2012 by Anonymous*

**Maths - Integration**

Find the exact value of the intergal with limits 1 and 0 respectively for the x^2 e^2x dx.
*December 12, 2012 by Anonymous*

**Calc ..basic integration**

I forgto how to integrate...its been to long. integration(Sqrt(1+2t^2+t^4))
*February 18, 2010 by mm*

**math(easy integration)**

find the integration of absolute x from -4 to 2? could anyone show me the way to get 10? thanks
*May 27, 2011 by ja*

**Calculus - Integration by Parts**

Please help me solve this integration problem. I don't understand how to do it. Thank you! ∫e^(2x)*sin(2x)dx
*May 18, 2011 by Emma*

**AP Calc B/C**

the integration of (e^x)/(1-E^2x)^3/2 with respect to x We are currently doing integration by tables, but I can't find the formula that I should use!
*September 29, 2014 by Anon*

**Maths**

Integration By substitution ive been given this equation int x^2(x^3-6)^3 dx using u = x^3 -6 but i dont understand how to do it please help
*November 15, 2009 by Amelia*

**maths**

Integration by substitution ive been given this equation int x^2(x^3-6)^3 dx using u = x^3 -6 but i dont understand how to do it please help
*November 15, 2009 by Amelia*

**Maths (Integration)**

Integrate(1+x/x^3)dx Don't know how to go bout this, if the numerator was a whole number it would ve been easier for me, Pls help me out.
*May 21, 2014 by Francis *

**Math - Indefinite Integration**

Use integration by parts to solve: I = f (x^3)(e^(x^2)) dx (Let "f" represent the integral) Let u = (e^(x^2)), dx = (1) / (2x(e^(x^2))) du Let dv = x^3, v = (x^4) / (4) I = (1/4)(x^4)(e^(x^2)) - (1/4) f (x^3) (2(e^(x^2))) du ... and now I don't know what to do. I don't know ...
*February 9, 2009 by Anonymous*

**MATHS-PARABOLA**

using integration find the area of the region enclosed between the circle x^2+y^2=16 and the parabola y^2 = 6x
*March 2, 2013 by anchal*

**Integration**

e^x / x dx Your symbols are not legible. Please retype using normal keyboard characters Integration of e^radicalx / radicalx dx
*November 30, 2006 by Ash*

**integration**

sqrt2 times e^t times t^(1/2) dt bounded between 0 and 1. i tried integration by parts.. but it keeps repeating.. please help. thank you!
*August 27, 2009 by tiff*

**math**

integration by parts - Integration of x^2 ln(x^3+2)
*February 23, 2011 by zooey*

**integration by parts**

s- integral s ln (2x+1)dx ? = ln(2x+1)x - s x d( ln (2x+1)) = ln(2x+1)x- s x [(2x+1)'/ (2x+1)] dx = ln(2x+1)x- s x [(2)/ (2x+1)] ?... then i'm confused... "ln(2x+1)x- s x [(2)/ (2x+1)] ?... then i'm confused..." x [(2)/ (2x+1)] = 2x/(2x+1) = (2x+1-1)/(2x+1) = 1-1/(2x+1) B.t.w...
*February 17, 2007 by nicholas*

**Integral calculus**

Please can anyone help with the following problems - thanks. 1) Integrate X^4 e^x dx 2) Integrate Cos^5(x) dx 3) Integrate Cos^n(x) dx 4) Integrate e^(ax)Sinbx dx 5) Integrate 5xCos3x dx The standard way to solve most of these integrals is using partial integration. So, look ...
*April 13, 2007 by Febby*

**human service**

This is my ask I have to answer. explore the existing integration of mediation and advocacy within a human services agency on a national or international level. Where would I find the answer to this. I belive I am not understanding the meaning of integration.
*September 12, 2011 by Patiance*

**math**

maths (integ) voltage v=25sin50πt is applied on a circuit. using integration, find mean and RMS over range t=0 to 10ms . i got it to 25/2πt^2 cos(2π/9)+c but im not sure that im going the righ way.
*April 21, 2014 by not a lemon*

**possible functions**

How to find all possible functions of f with a given derivative. 1. f'(x) = 2 2. f'(x) = sinx Integrate each function. Remember that there can be an arbitrarcontant C added to each integral. 1. f(x) = x + C 2. f(x) = -cos x + C We haven't learned integration yet. Is there any ...
*October 29, 2006 by Jen*

**Calculus**

I'm having trouble reversing the order of integration of ∫∫dxdy from a=0 to b=2(3)^(1/2) for x and c=y^(2/6) to d=(16-y^2)^(1/2) for y. I graphed the region of integration and that still doesn't really help me. i got approximately 7.9 for the ∫∫dxdy ...
*March 21, 2012 by Brandon*

**Statistics**

In a survey of adults throughout the caribbean 75% strongly support Caribbean integration. You randomly select 24 adults, throughout the Caribbean, and ask each if they strongly support Caribbean integration. What is the probability that at most 15 adults say they strongly ...
*October 28, 2010 by Special*

**improper integral**

can any one explain how to evaluate this improper integral i.e. the function is not continuous at 0 neither at inf integration of [(e^(-sqrt(t)))/sqrt(t)]dt from 0 to infinity the integration part is easy but i want only how to evaluate it thanks
*May 2, 2010 by William*

**Chemistry**

An NMR spectrum of fumaric acid in acetone was run. The following results were obtained: 1 sharp peak with 5 splittings at around 2 ppm (belonging to acetone) 1 broad peak at 3.789 ppm (integration 0.63) 1 sharp peak at 6.779 ppm (integration 1.00) (belonging to CH of fumaric ...
*August 28, 2010 by Alan*

**Chemistry**

An NMR spectrum of fumaric acid in acetone was run. The following results were obtained: 1 sharp peak with 5 splittings at around 2 ppm (belonging to acetone) 1 broad peak at 3.789 ppm (integration 0.63) 1 sharp peak at 6.779 ppm (integration 1.00) (belonging to CH of fumaric...
*August 30, 2010 by Alan*

**Maths - Integration by Parts**

Question 1 e^2x Cos(4x) dx Question 2) x sin(x) dx Question 3) x^2 sin(x) dx
*November 7, 2012 by Anonymous*

**calculus**

How do you find: the Integral of arcsin(1 / (sqrt x^2 - 1) ) dx ?? (The integral of arcsin of one over the squareroot of x squared minus 1) So far, I've used trig integration to simplify down to arcsin(1/tanb) *secbtanb b is theta Then, I've used integration by parts. But i'm ...
*October 13, 2008 by Cindy*

**Calculus**

f(t)= -2te^-t^2, [0,5] Find average value. Attempt: I know that the average value is the integration of f(t) from a to b divided by b-a. I used u substitution to get u= -t^2 and du= -2xdx. I changed the limits of integration to [0,25] and I got integral of e^u du. I am not ...
*October 29, 2009 by Alex*

**MATHS...PLEASE HELP**

Differentiate sin(cubed)x with respect to x. Hence find (integration sign) sin(squared) x cosx dx. ALSO Find the equation of the tangent to the curve y = 2 sin(x-(pie divided by 6)) at the point where x = (pie divided by 3) .
*March 19, 2010 by john peaterson*

**calculus**

find the volume of solid inside the paraboloid z=9-x^2-y^2, outside the cylinder x^2+y^2=4 and above the xy-plane 1) solve using double integration of rectangular coordinate. 2) solve using double integration of polar coordinate 3)solve using triple intergation
*May 10, 2014 by AIRA*

**Numerical method - numerical integration**

Evaluate the following integration: I(f) = integral sign from 0 to 20 of e^(-x) dx 1. Analytically 2. Rectangle method with h= 10,5,4,2,1. 3. Mid-point method with h= 10,5,4,2,1. 4. Trapezoidal method with h= 10,5,4,2,1. 5. Simpson's method with h= 10,5,4,2,1. 6. Using ...
*October 31, 2010 by Anonymous*

**Numerical method - numerical integration**

Evaluate the following integration: I(f) = integral sign from 0 to 20 of e^(-x) dx 1. Analytically 2. Rectangle method with h= 10,5,4,2,1. 3. Mid-point method with h= 10,5,4,2,1. 4. Trapezoidal method with h= 10,5,4,2,1. 5. Simpson's method with h= 10,5,4,2,1. 6. Using ...
*November 1, 2010 by Anonymous*

**double integral**

1. Sketch the region of integration & reverse the order of integration. Double integral y dydz... 1st (top=1, bottom =0)... 2nd(inner) integral (top=cos(piex), bottom=(x-2)... 2. Evaluate the integral by reversing the order of integration. double integral sqrt(2+x^3) dxdy... ...
*March 11, 2011 by Michelle*

**calculus-integration**

integrate -2/xln^4(x)...plz help me..give me an idea on how to start..plz The derivative of the ln(x) function is 1/x and this is multiplying the ln^4(x). You can thus write the integral as: -2 * 1/5 ln^5(x) + constant. is that the answer? wut about the x infront of ln^(x)......
*May 7, 2007 by Maria*

**Calculus please help!!! double integral**

Combine the following two integrals into one by sketching the region, then switching the order of integration. (sketch the region) im gonna use the S for integral sign..because idk what else to use. SS6ycos(x^3-3x)dxdy+SS6ycos(x^3-3x) And the first integration limits for x are...
*March 22, 2012 by Sean*

**double integrals**

Combine the following two integrals into one by sketching the region, then switching the order of integration. (sketch the region) im gonna use the S for integral sign..lol SS6ycos(x^3-3x)dxdy+SS6ycos(x^3-3x) And the first integration limits for x are between -1 and y, for y ...
*March 21, 2012 by Mary*

**Math**

Make a complete re search project on maths is interconnected with other subject i.e. Maths Vs computer using art with maths.
*June 5, 2012 by Shivansh Tomar*

**maths letaracy,history,geography and life science **

im going to grade 10 next year,and i want to be a psychologist and im going for maths letaracy and history feild im realy not good with maths and i just found out a few weeks ago that i need pure maths to do psychology.i dont know what to do now ,i also dont know the jobs ...
*October 26, 2013 by khanyisa maringa*

**business studies n maths lit n accounting n geo**

Do I need pure maths in These subjects or is maths lite fine to get me to the point of being a entreprenuer in my life
*January 21, 2015 by bafana matseke*

**Integration?**

Sorry, i have a load of questions on integration... thanks for any help provided! Evaluate the integrals: limit 0 to pi/4 ∫ [sec^2x]/[5+tanx] dx limit 0 to pi/6 ∫ [3cos3x]/[3+sin3x] dx limit 0 to 3 ∫ [2x-1]/[x^2-x+1] dx ...
*June 19, 2009 by Arisa*

**Calculus**

The rate of performance is given by dN/dt=1/(2sqroot(t+1)) where N is the number of unity completed t hours after beginning a new tak. If 2 units are completed afer 3 hours, how many units are completed after 8 hours? N= INT 1/2 (t+1)^(-1/2) I will be happy to critique your ...
*April 10, 2007 by Chris*

**maths a**

Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision. ...
*September 11, 2014 by jay*

**Maths B**

Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision.
*May 24, 2012 by Anna*

**Maths B**

Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision.
*May 24, 2012 by Anna*

**Stats: Joint Density Function**

Let the joint density function of X and Ybe given by: f(x)={kxy^2 for 0<x<y<1 (0 otherwise what is the value of k? Can someone please help me with this? The formula I used was: ))kxy^2 dx dy (where )) is double integration both from 0 to 1). I worked it out (I think) ...
*October 18, 2006 by Stephanie*

**Calculus**

Would someone clarify this for me... Is antiderivatives just another name for intergral and why is intergral of a function is the area under the curve? Antiderivatives is another word for integral. Why area? THink on this...the integral is the sum of all the "heights" times ...
*September 12, 2006 by Jan*

**math**

What Is The Integration Of (0)?
*September 22, 2011 by jack*

**Physics**

A rocket ascends from rest in a uniform gravitational field by ejecting exhaust with constant speed u. Assume that the rate at which mass is expelled is given by dm/dt=mk, where m is the instantaneous mass of the rocket and k is a cosntant, and that the rocket is retarded by ...
*October 25, 2012 by Jake*

**Diff EQ**

is the integration of (x-2)^2 = 1/3(x-2)^3 Yes, that is correct.
*January 22, 2007 by nicole*

**calculus**

what's integration of (tanx)^5?
*September 25, 2008 by jenny*

**math**

integration of cot^4(1-2x)dx
*February 27, 2011 by daniel*

**math**

integration of x^2 * cos^2(x)
*February 27, 2011 by chris*

**Integration by parts**

integrate (e^x-x)^2 dx
*July 13, 2011 by Steff*

**MATH**

integration of e^(lambda.x) = ?
*June 12, 2014 by Anonymous*

**calculus**

integration of x^2/(x+3)sq.root of 3x+4 w.r.t. x
*November 2, 2014 by Anonymous*

**Calculus II**

Does anyone know of a very good website that can teach me to better understand the disk, washer, shell method to finding volume of irregular figures (solid of revolution)using of course, integration techniques (such as when to recognize integration with respect to y or X for ...
*January 13, 2007 by EinstNewtLieb*

**Calculus**

Given two problems: Problem A: Tau = Integral(0 to v) v/(q^2 - v^2) dv q = constant Problem B: Tau = Integral(V TO 0) v/(q^2 - v^2) dv q = constant Why is it that, SUBSTITUTION RULE is used in problem A, and QUOTIENT RULE is used in problem B? The two problems are somewhat ...
*December 19, 2007 by Anthony*

**integration math**

how to integrate: y' = 2xy/(x^2-y^2)
*April 13, 2009 by stevie*

**integration**

∫6dx/xln(5x)
*February 6, 2010 by Anonymous*

**math**

integration of sqrt of tan(x)
*February 19, 2010 by prasenjit baidya*

**calculus**

integration of4sin^2ydy
*October 4, 2010 by Noushad*

**Calculus**

integration-indefinite Evaluate dx/3(2x-1)^2
*January 7, 2012 by Lee*

**Calculus**

xe^x using integration by parts
*May 21, 2014 by Laurie*

**MATH**

what is the integration of x . e ^(-x) ? Can you please explain it :) Thanks
*June 12, 2014 by Anonymous*

**MATH**

what is the integration of e^-|x| from negative infinity to x ?
*June 16, 2014 by Anonymous*

**Integration**

Intergrate sec^3(x) dx could anybody please check this answer. are the steps correct? thanks. = sec x d tan x = sec x tan x - tan x d sec x = sec x tan x - sec x tan^2(x) dx = sec x tan x + sec x dx - sec^3(x) dx = sec x tan x + ln |sec x + tan x| - sec^3(...
*October 15, 2006 by Vidal*

**maths**

i am told to do a project in maths it should involve a maths consept.pls help as to what should i do?
*November 18, 2007 by chandini*

**English**

Culture diversity/a mobile workforce command creative leadership, new partnerships, and innovative approaches to integration? I put Culture diversity/a mobile workforce command creative leadership, new partnerships, and innovative approaches to integration; and my teacher said...
*January 19, 2013 by Tara*

**calculus**

evaluate: integration of x^2 (square root of (1-2x^3))dx
*February 19, 2009 by joel*

**calculus**

sec^2(x) / (1+2tanx)^2 dx please help me with this integration thank you
*March 19, 2009 by leslie*

**international business**

what are the advantages and disadvantages of integration
*November 22, 2010 by pj*

**calculus - Integration**

Evaluate ∫ [(5+x)^2]/√x
*December 19, 2010 by Geoff*

**calculus**

The antiderivative of arctan(4t)dt by integration of parts.
*February 28, 2011 by Kate*

**Calculus B**

The antiderivative of ln(2x+1) using integration by parts.
*February 28, 2011 by Brandon*

**Calculus**

I have an integration problem. INT(t+8)^2/t^4 dt
*September 3, 2011 by Ferdinand*

**calculus**

dy\dx=x+1\square rod of x where y=5 x= 4 from chapter 5 (integration)
*December 24, 2011 by h.j*

**history**

what is the difference between vertical and horizontal integration?
*November 24, 2009 by Joanna*

**calculus**

find the indefinite integral: integration of tan^3(7x) dx
*June 3, 2010 by john*

**Calculus - integration**

Q. (15^x/3^x) dx i know that the (a^x) dx = a^x/lna +c but i dont know how to solve this question. thank you
*November 1, 2010 by L*

**calculus - Integration**

evaluate ∫sec^7 x tanx dx
*December 19, 2010 by Geoff*

**Math**

Solve integration using u substitution of (x+1)sqrt(2-x)dx
*January 17, 2011 by Hannah*

**Math**

Solve integration using u substitution of (x+1)sqrt(2-x)dx
*January 17, 2011 by Hannah*

**Calculus 2**

integral of xarctanxdx using integration by parts.
*September 26, 2012 by Heather*

**calculus**

INTEGRATION BY PARTS... 1) e^5t sin 3t dt 2) xe^3x dx 3) x sec^2 x dx **anybody can help me for this question?
*December 4, 2012 by kchik*

**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?
*December 4, 2012 by kchik*

**calculus**

Use integration by parts to find ∫ 2x e-x dx.
*March 11, 2013 by mikey2*

**maths**

A survey o 85 students asked them about the subjects they liked to study 35 students liked maths,37liked history,26 liked physics,20 liked maths and history,14 liked maths and physics,2 liked all the subjects. a) how many of these students like maths and physics? B) how many ...
*January 28, 2015 by deepthi*

**Math**

How do you complete the proof for the integration of dx/sqrt(a^2 - x^2) = arcsin (x/a) + C. a is a constant.
*February 24, 2008 by Ally*

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