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August 28, 2014

Search: integrate

Number of results: 440

Integral calculus
Please do help solve the followings 1) Integrate e^4 dx 2) Integrate dx/sqrt(90^2-4x^2) 3) Integrate (e^x+x)^2(e^x+1) dx 4) Integrate xe^x2 dx e^4 is a constant. 3) let u= e^x + x du= (e^x + 1)dx 4) let u= x du=dx v= e^x dv= e^x dx
April 13, 2007 by Febby-1

calculus
1) Integrate Cos^n(x) dx 2) Integrate e^(ax)Sinbx dx 3) Integrate (5xCos3x) dx I Will be happy to critique your thinking on these. 1) Derive a recursive relation. 2) Simplest by replacing sin(bx) by Exp[i b x] and taking imaginary part at the end. 3) First integrate sin(yx) ...
April 13, 2007 by Febby

Calc 1
integrate from 0 to pi/4 (sec^2x)/((1+7tanx)^2)^1/3 integrate form pi^2/36 to pi^2/4 (cos(x^1/2))/(xsin(x^1/2))^1/2 integrate from 0 to pi/3 (tanx)/(2secx)^1/2
November 30, 2012 by Frank

integrate
integrate du/3u and integrate x/x^2 dx it might be simple...i just need a head start...tnx
October 8, 2008 by allison

Calculus
6.] Replace the integral in exercise 5 (int. (1/ 1 t) dt a = 0, b = 1/2with ?1/(1+t) dt with a = 0, b = 1, and repeat the four steps. a. integrate using a graphing utility b. integrate exactly c. integrate by replacing the integrand with a Taylor series and integrate term by...
October 16, 2011 by Rajeev

calculus 2
Justify, with a written explanation or a mathematical reasoning and with a sketch of at least two different cases, the following properties of integrals: a) If f(x) is less than or equal to g(x) for a<=x<=b then integrate from a to b of f(x)dx is less than or equal to ...
September 12, 2012 by bobby

calculus help please
dy/dx = 2y^2 Integrating...y=2/3 y^3 + C put 1,-1 into the equation, and solve for C. Then find the y for x=2 if y= a^uhttp://math2.org/math/integrals/tableof.htm see exponential functions. dy/dx=2y^2 and if y=-1 when x=1, then when x=2, y=? how do i get x in the equation. do ...
December 10, 2006 by bobpursley

Math Integration
Integrate: f (x)/(2x + 1) dx let f represent integrate sign let u = x, du = dx => dx = du = f (u)/(2u + 1) du = f u (2u + 1)^(-1) du = (1/2)u^2 (ln|2u + 1|) + c = (1/2)x^2 (ln|2x + 1|) + c ...what did I do wrong? The correct answer is (1/2)x - (1/4)ln|2x + 1| + c
February 11, 2009 by Anonymous

Calculus
How do you integrate [(x^2)(cos(2(x^3)))]? I tried to integrate by parts but I'm going in circles yet again...
February 13, 2009 by Hannah

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.
June 5, 2011 by JAE92

plz integrate
how do u integrate 1+u/3u+2u^2 please help me get started ...tnk u
October 8, 2008 by allison

MATHS...PLEASE HELP
what do you get when you: integrate 10sin^4xcosx dx when you integrate 9x^2e^6x^3 dx
September 12, 2010 by adil ahmed

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

PLZ integrate
integrate cos^3x dx tnk U
November 19, 2008 by mary

maths
integrate by parts integrate (4+x^2)^1/2
December 29, 2012 by laura

maths
integrate by parts integrate (4+x^2)^1/2
December 29, 2012 by Jess

calculus
1) Integrate (e^x+x)^2(e^x+1) dx 2) Integrate xe^x2 dx Let u=(e^x+x) du=(e^x +1) dx I will be happy to critique your work or thinking. You are posting work for me to do, and I am not inclined to do that, it will not help you for me to do it. I think I gave you strong hints on ...
April 13, 2007 by Febby

integrate
how do i integrate 2u du /u-2+2u^2 so i used subsitution rule? or can i used integration by parts and how? thanks in adnvace
October 8, 2008 by allison

math, calculus 2
Consider the area between the graphs x+y=16 and x+4= (y^2). This area can be computed in two different ways using integrals. First of all it can be computed as a sum of two integrals integrate from a to b of f(x)dx + integrate from b to c of g(x)dx What is the value of a, b, c...
September 12, 2012 by bobby

calculus
Integrate sqrt(x^2 + 1) dx over [0,2*pi] I can substitute u=arctan x to get: Integrate (sec u)^3 du over [0,arctan(2*pi)] From there, I'm stuck. (thanks Count Iblis for your last help)
July 6, 2012 by Parker

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?
June 6, 2011 by JAE92

calcus
Sketch the regions enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. integrate with either respect to x or y, then find area S of the region given that y=sqrt(x), y=x/2, and ...
October 21, 2010 by helpplease

Calculus
Sketch the regions enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. integrate with either respect to x or y, then find area S of the region given that y=sqrt(x), y=x/2, and ...
October 21, 2010 by saywhat

Calc
Calculate the area bounded by the x-axis and the function f(x)= -(x-a)(x-b), where a<b and a and b are constants. Please do it out in steps so I can understand it, and try to simplify the final answer and leave it in factored form. Frankly, I would multiply out the ...
November 27, 2006 by Tezuka

math
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=5x , y=3 and 2y+1x=6 It is easier to integrate with respect to the variable Area = Help!!!!
January 25, 2014 by kitor

math
Find the area bounded by the parabola y^2=4x and the line y=2x-4. Use vertical representative rectangles (integrate with respect to x) and horizontal representative rectangles (integrate with respect to y). the answer is 9 square units ... i just need to know how to get to that.
December 15, 2010 by ashton

College Calc 1
Find the area bounded by the parabola y^2=4x and the line y=2x-4. Use vertical representative rectangles (integrate with respect to x) and horizontal representative rectangles (integrate with respect to y). the answer is 9 square units ... i just need to know how to get to that.
December 15, 2010 by Ashton

Calc
Problems, once again. 1. Compute the average value of: f(x} = x/(x+3) over the interval [-a,a] 2. Find the area of the region bounded by the graph of: y = 2√(x^2 + 1) X axis Y axis Line x = 1 On the first, integrate, then divide the integral by 2a. On the second, ...
March 17, 2007 by Tezuka

Calculus
dy/dx = 4ye^(5x) a) Separate the differential equation, then integrate both sides. b) Write the general solution as a function y(x). For the second part, I got y(x)=e^((5e^(5x))/(5)) + C but I don't understand how to separate differential equations and/or integrate both sides...
June 16, 2014 by Jamie

Math
dz =(−sinx + 2xy^2)dx +(2x^2 y)dy Integrate the differential to find the function z. Would I say that z was equal to two separate differentials and integrate the first part of the function with respect to x and the second part with respect to y? z = cosx + x^2 y^2 + x^2 ...
May 17, 2009 by Clare

Calculus
integrate t*(t^2 - 1)^(1/3) dt over (0,3) I substitute u = t^2 - 1 du = 2t dt which leads to integrate (1/2) u^(1/3) du over(-1,8) = (3/8) * u^(4/3) over (-1/8) = 3/8 * [8^(4/3) - (-1)^(4/3)] I would guess that (-1)^(4/3) is +1, since the cube root of -1 is -1 and taking that...
February 5, 2011 by Sean

Calculus HELP plz
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=4x^1/2,y=5,2y+1x=5 Do you really mean "2y+1x=5" ? It is not customary to use the coefficient 1 in front of a variable. It is unnecessary. ...
May 5, 2007 by jimmy

Integrating Factors
I've been working on this hw problem for a while now, but I'm stuck in the integration process. I'm pretty sure I made an error, cause I can't seem to be able to integrate the right side of the equation. Q: (1/(x^(2)+1))y' + xy = 3 using the equation d/dx(ry)=f(x)r(x) I found ...
January 20, 2014 by Student

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

math, calculus 2
Consider the function f(x)=-((x^2)/2)-9. In this problem you will calculate integrate from 0 to 3 of ((-x^2)/2)-9)dx by using the definition integrate from a to b of (f(x))dx= lim as n approaches infinity of sum_(i=1)^n of (f(x_i))(delta x) The summation inside the brackets is...
August 29, 2012 by bobby

Integration of exponents with absolute values
I cannot for the life of me figure this out. Please help me. How do I integrate the function f(x) = 0.1 * e ^ (-0.2 * |x|) from neg. Infinity to pos. Infinity? I seem to only be able to get 0, but the answer is 1. I think it is the |x| that is throwing me off. Please Hlep! ...
January 24, 2007 by Tyler

Calculus
Calc length of arc of y=ln(x) from x=1 to x=2 ---- So far: Definite Integral over x=(1,2) of sqrt(1 + 1/x) dx 1/x = tan^2 t x = 1/tan^2 t sqrt(1+1/x) = sqrt(1+tan^2 t) = sec t dx = -2 * tan^-3 t * sec^2 t dt Integrate over x=(1,2): sec^3 t / tan^3 t dt Integrate over x=(1,2): ...
January 2, 2008 by mathstudent

physics (mechanics)
Practice problem: A rocket sled for testing equipment under large accelerations starts at rest and accelerates according to the expression: a= (2.8 m/s^3)t + (3.9 m/s^2) How far does the rocket move in the time interval t=0 to t=0.81 s? This is just a practice problem to help ...
August 28, 2010 by John

calculus-integration!
should i use substitution?? if yes how should should i use it? plz i need some directions? k plz someone?...so far i used trig. substitution. i got a=8, so i used x=asin()so according to this substitution i got x=8sin() and dx=8cos() d...then i used used the plug them in ...
May 6, 2007 by Maria

Calculus
Integrate: x/(9+x^4)dx
January 22, 2013 by Bella

Calculus
integrate: (x^2 + 1)^k dx
November 6, 2007 by mathstudent

math
integrate: (x^2 + 1)^k dx
November 7, 2007 by mathstudent

calculus
Integrate: dx/(2x^2 + 4x + 7)
January 6, 2008 by mathstudent

calculus
how do you integrate x^2/(9+x^6)
February 12, 2008 by sarah

calculus
how do you integrate x^2/(9+x^6)
February 12, 2008 by sarah

math
how do you integrate dx/(x^2*(x^2+4)^1/2)?
February 15, 2009 by Lauren

math
how do you integrate (3x+1)/(x-1)x^2 dx?
February 15, 2009 by Laura

calculus
how do you integrate dx/(x^2*(x^2+4)^1/2)
February 16, 2009 by Lauren

Calc
how do I integrate x^4-3y^3+2y^2? thanks
November 21, 2009 by Rose

calculus
integrate (2/3x^5)
January 28, 2010 by Anonymous

Calculus
From 2 to 3, integrate ((x^3)+5)dx/x.
February 5, 2010 by <3

calculus
integrate 2/((2x-7)^2) from x=4 to 6
June 24, 2011 by cyn

Calc
Integrate from [0, 1/2]: 1/(4x^2+1)^(3/2) dx
February 23, 2012 by Anonymous

Calculus
Integrate (x^3)/((x^2)+4) dx
December 17, 2012 by Athlete 34

Calculus
integrate x^2+4x+12/(x-2)(x^2+4)
December 19, 2012 by Anonymous

maths
integrate x^2/(x^4+a^4) dx
December 21, 2012 by sapna

maths
integrate 2^(3x). 3^(2x) . 5^(x) dx
December 22, 2012 by Anonymous

Calculus
How do you integrate: 1/(x^2-1) dx ?
January 9, 2013 by Kyle

calc
Integrate 2(x^2)e^g(x) where g(x)=4^(x^3)
May 1, 2013 by Sunny

math
integrate (x^2 + 2x + 5) / (x - 2)
May 8, 2013 by sunny

math
how do you integrate 3-e^1?
February 8, 2014 by Hannah

Math
Integrate (5x^2 + 3x - 2)/(x^3 + 2x^2)
April 12, 2014 by Anonymous

math
Integrate: y/sqrt(2y+1) dx
September 15, 2007 by mathstudent

math
Integrate: csc x dx
December 17, 2007 by mathstudent

Calculus
How do we integrate xlne^x .
March 18, 2008 by RJ

Calculus
How do we integrate 1/lnx.
March 18, 2008 by RJ

college math
how do you integrate ln(x^2+1)dx?
February 15, 2009 by Laura

calculus
how do you integrate 30x^2/(x-2)(x+3)(x-5)
February 16, 2009 by Lauren

calculus
how do you integrate 30x^2/(x-2)(x+3)(x-5)
February 17, 2009 by Lauren

calculus
How do I integrate 1-e^-kt from 0 to infinity?
March 2, 2010 by will

Calc II
Integrate 3/(Sqrt x^2-16) dx
June 26, 2010 by Scott

calculus
How do I integrate [1/(x^2+1)] Thx
January 25, 2011 by Priscilla

calculus
integrate x+5/(x^2+10x+26)
January 26, 2011 by Anonymous

Calc
How do you integrate sinx?
February 2, 2011 by Erica

calculus
integrate xsin(2x)dx=
March 6, 2011 by bob

AP Calculus
integrate |sint(t^2)| dt with 0<t<3
April 6, 2011 by Sandy

calculus
how to integrate surd (1+4x^2)?
April 27, 2011 by awoz

Calculus
How would you integrate x^2/x^2+9 ?
May 26, 2011 by Athene

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

Calculus
How do you integrate 3∫(1)/(x+1) dx ? Thank you!
October 19, 2011 by Erica

Calculus
integrate: (x^2-3)sqrt (x+5)
December 14, 2011 by Ashley

Calculus
Integrate tan^6(x)
January 8, 2012 by Shayna

Calculus
Integrate the following (x^5 - 2)dx
February 10, 2012 by Taylor

math
Integrate x^2/rootx-1..
October 5, 2012 by abhi

calculus
integrate the following (3y-7x-3)dx+(7y-3x-7)dy=0
January 3, 2013 by waqas

maths
integrate sqrt2/1-3x
February 26, 2013 by Anonymous

maths
integrate 10*e^5t*cos5t.
May 25, 2014 by Abhi

college calculus
how do you integrate sqrt( x^2 - (x^2)(e^(-2x)) )?
March 11, 2008 by matt

maths calculus
How to integrate (cos2x)^2?
October 17, 2008 by Surf

calculus
integrate: square root of (4-x^2)
December 2, 2008 by Jenny

math/ cal
how do you integrate sin (x^2) dx?
February 15, 2009 by Laura

college math
how should I integrate 1/(x^2 +1)^5
February 15, 2009 by Ann

college math
how do you integrate (cos^2 x)^4
February 15, 2009 by Laura

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

calc
Integrate (1/2)^(3x+2)dx using substitution.
December 6, 2009 by Carly

Maths
How do I integrate this: x cubed + 1 --- x to the power of -3
December 30, 2009 by Dakota

Math
What substitution could I use to integrate a/(a^2 + x^2)^3/2 dx
January 26, 2010 by Sean

calculus
Integrate x^2+5x+1dx/(2x^3+15x^2+6x+23)^1/2
October 15, 2010 by Frank

Caculus
integrate x^(1/2)e^x.dx from 0 to 4, n=12 1) the trapezoidal rule
November 24, 2010 by chen

calculus
integrate: (square root of (6x+4)) - (2x) dx
December 27, 2010 by joe

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