Friday

September 19, 2014

September 19, 2014

Number of results: 58,374

**calculus**

Can someone please tell me what the word "WHOLE" AND "IRRATIONAL" MEAN IN CALCULUS? THANKS
*September 2, 2008 by Mike*

**calculus**

hello here, Please can i get direction on website to practice calculus (both differential & integral) objectives based online. thanks.
*August 19, 2009 by matrix school 2*

**Calculus Please Need Urgent3 :/**

Find the derivative of the following function using the appropriate form of the Fundamental Theorem of Calculus. F(x)= (s^2)/(1+3s^4)ds from sqrtx to 1 F'(x)=? Thank you so much guys!
*April 19, 2014 by Jay*

**Calculus AB (AP)**

Hi, I have a calculus test tomorrow and I understand how to complete all of the problems, but I am unsure behind the reasoning of taking two derivatives. Can someone please explain the following: 1. g(x)=e^(f(x)) g'(x)=e^(f(x))f'(x) 2. f(x)=Integral from 0 to 3x of the square ...
*April 13, 2011 by Jake*

**Calculus**

I need help with these two review calculus problems for my final exam. What is the derivative of a). (5x^2+9x-7)^5 b). Lne^x^3 For a. I got 50x+45(5x^5+9x-7)^4 For b. I got 3x^2 Can you verify please?
*May 21, 2012 by Sam*

**Calculus: Derivatives**

I'm having trouble understanding what derivatives in calculus (instantaneous speed) is. Can someone please explain it to me, or provide some easy links to learn from? Thanks!
*September 9, 2007 by Joe*

**Maths Calculus Derivative Integral - Urgent Please**

Use 2nd Fundamental Theorem of Calculus to find derivative of f(x) = integral of 2x^2 (at the top) to x-5 (at the bottom) of square root of Sin(x)dx
*October 18, 2010 by Nick*

**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 ...
*July 1, 2008 by Molly*

**Calculus please help**

f(x)=(x^2+2x+3)^4, find f'(x). what rule do we use and can some please show me the steps
*April 29, 2008 by John*

**Calculus**

Find the derivative of (sin(^3)x)(tan x) Please explain to me in steps please , thank you
*April 19, 2010 by Christine*

**Calculus (please help)**

Evaluate the indefinite integral: INT dx/(64+x^2)^2 Please help with this one.
*September 20, 2011 by Carmen*

**calculus--please help!!**

Find the functions f&g so that fog =H H(x)=(3x+2)^6 please show work
*January 8, 2013 by anonymous*

**Calculus help me please!**

Find the value of k so that f(x)= {3x^2+kx+4 if x<0 and 2sqrt(x+4) if x >or equal to 0} is differentiable at x=0 can someone please provide help!!!
*November 27, 2011 by kali mata*

**calculus please help**

lim y→−1 (sqrt(y^2+8)-3)/y+3 find limit if it exists please help
*December 2, 2012 by dt*

**calculus-can someone please help me with this ques**

find the rate of change of f(x)=x^2+4 a. from -2 to 0 b. from 1 to 3 c. from -2 to 1 please show work
*December 16, 2012 by confused--Please help!!!!*

**Calculus Help Please!!! **

if f(x)= x+(1/x), find f'(x) using the limit definition of derivative. Please show steps!!! Thank you!!!
*February 25, 2014 by Tenshi *

**To Reiny**

Reiny could you please check my Calculus post below, it says Calculus--Reiny.
*October 4, 2011 by -Untamed-*

**calculus**

from the equation: x^4 - i = 0 x^4 = i how do you get: The solutions are the fourth roots of i = cos(pi/2) + isin(pi/2) I don't understand how you get pi/2? please full and detailed explanation please.
*April 14, 2008 by Dom*

**calculus**

find the bound on the real zeros of the polynomial function f(x)=x^4+x^3-4x-6 cna you please show me how you got the answer please
*December 22, 2012 by anonymous*

**CALCULUS:)**

Please help me... and show steps please :) integral from 0 to 1 of (e^x+1)/(e^x +x) dx
*August 9, 2011 by Brit*

**calculus**

please help! Find an equation of the tangent line to the curve at the point (-1, 1). y = 5x3 - 6x. y=? ...............i keep getting y=x+2 and its wrong. can someone please help?
*January 25, 2011 by nic*

**calculus**

can someone please help me with these 3 questions: 1) Evaluate the limit. lim_(x->infinity) (ln(ln(4 x)))/(4 x) 2)Find y ' and y ". y= ln(5 x)/x^7 3)y =(arctan)(x - sqrt(1+x^2)) for this question i got y = -1/(2(1+x^2))which was wrong. Please and thank you!
*October 29, 2010 by clare*

**Calculus**

What is the use of Calculus? How is it use in jobs? What jobs use Calculus? Calculus is used in engineering, economics, any physical science, and in business (e.g., actuary studies and statistics).
*May 5, 2007 by Anonymous*

**Calculus POSTS please check**

Please check my calculus posts. They are at the bottom. Thanks.
*September 21, 2011 by Anonymous*

**Calculus--Reiny**

Calculus - Reiny, Friday, December 23, 2011 at 6:59pm I read that as (4a^2-1)/(4a^2-16) * (2-a)/(2a-1) , my brackets are necessary = (2a+1)(2a-1)/( 4(a+2)(a-2) * (2-a)/(2a-1) the (2-a)/(a-2) are opposite, they will give you the -1 so.. = -(2a+1)/(4(a+2)) , again you have to ...
*December 25, 2011 by -Untamed-*

**calculus**

Quadratic function written in standard form where a, b, and c are constants such that a is not zero. f(x)= ax^2+bx+c Using calculus find the vertex of the parabola formed by this quadratic function. Determine under what conditions this vertex is a maximum or minumum (using ...
*May 8, 2011 by Janet*

**calculus**

Find any relative extrema and any points of inflection if they exist of f(x)=x^2+ ln x^2 showing calculus. Please show work in detail so I can follow. Thanks. The answer is no relative max or min and the points of inflection are (1,1) and (-1,1) but I'm having trouble getting ...
*May 4, 2013 by Rene*

**Calculus 2**

Calculus work problem. John bought the following corner lot. Two sides are bounded by 2 roads the back is bounded by a stream that follows the curve y = -x^3 + 8. He wants to build a house in the center of the lot. Where will that be? Please show all work
*September 27, 2012 by Laura*

**Calculus**

Greetings, This is a question about selecting courses for my semester. I was planning to take Calculus 3 (Mostly 3-Dimensional topics involving calculus) and a C++ programing course. If you have heard of these courses, can you please tell me your thoughts about me taking these...
*January 3, 2012 by Simon*

**calculus please help**

I posted this below but had no response. I would appreciate help with details please.How do I find the indefinite integral of h(u)=sin^2(1/5u) this is one fifth u. Does it involve double angle formulas? Thanks.
*February 19, 2011 by mary*

**Calculus Graph help!!!**

I need help with a calulus graph and figuring out its equation but it wont let me post the picture of the graphs here. so will someone who understands Calculus and their graphs super well please email me k m k underscore horse lover at hot mail dot com. no spaces and an actual...
*May 2, 2012 by kelsey*

**Calculus**

If anyone can please help me solve this math problem! PLEASE!! Here is the link: img63.imageshack.us/img63/9355/img0002gp.jpg
*July 22, 2010 by Paul*

**Calculus - please check my work**

Differentiate each function a) y = -3x^2 + 5x - 4 b) f(x) = 6/x - 3/(x^2) c) f(x) = (3x^2 - 4x)(x^3 + 1) the answers i got for each was: a) y'= -6x + 5 b) f'(x)= -6/x^2 + 6/x^3 c) f'(x)= 15x^4 + 6x - 16x^3 - 4 please double check and let me know if these are correct, thank you.
*June 18, 2012 by Henry*

**Calculus - please check my work**

evaluate rounding to 2 decimal places if neccessary a) 1n5 = 1.61 b) lne^2 = 2 c) (lne)^2 = 1 please let me know if these are correct, thank you.
*June 18, 2012 by Henry*

**Calculus**

Please help find the rational roots of f(x)=4x^4 - 3x^3 + 2x^2 +x - 3 another is f(x)=-3x^3 - 2x^2 + x - 1 I tried but still confuse please help really really need help Thank you very much!
*September 2, 2012 by Heather*

**calculus--please helpp**

if the line 3x-4y=0 is tangent in hte first quadrant to the curve y=x^3+k, find k. all i know is that its related to finding a derivative and i m basically completely lost....can please someone provide me some help?????
*October 14, 2011 by krishna*

**Calculus Need of Urgent help**

find the indicated limits, if they exist. 1. lim (3x^3+x^2+1)/(x^3+1) x-> -infinity 2. find the slope of the tangent line to the graph of the given function at any point: f(x) = 2x +7 Could anyone please, please, please explain to me how to do these problems? It seems like ...
*February 8, 2011 by Anonymous*

**Calculus Help Please!!!**

Find the equation in slope intercept form of the tangent line and the normal line to the curve x^2+4xy+y^2=13 at the point.(2,1). show steps please!!! thank you!
*April 8, 2014 by Tanya *

**calculus-can someone please help me with this ques**

Given the following polynomial, find a. the zerros and the multiplicity of each b. where the graph crosses or touches the x-axis c. number of turning points d. end behavior f(x)=(x-1)(x-5) **please show work**
*December 17, 2012 by confused--Please help!!!!*

**Calculus please help**

please help I can not understand this. I need an implicit form answer for the general solution of differential equation dy/dx=2(e^x-e^-x)/y^2(e^x+e^-x)^4 with (y>0). I have seperated the y^2 to the left hand side to become 1/3y^3 but have no idea how to make the right hand...
*February 18, 2011 by Brian*

**Pre-Calculus**

Could you please explain how to use a matrix (matrices) to solve a system of linear equations (two variables)? My book doesn't explain it in a way I can understand. Please and thank you.
*January 24, 2013 by Caroline*

**Calcuslus-Calculus-Calculus **

A rocket arises from its launching pad with a velocity given. By 0.1 h m/s ,where h m is the height reached by the rocket at that time.the rocket is obserrvved from 2000 m away from the launch pad.at. What rate is the distance of the roocket from observer channging when the ...
*March 16, 2011 by Mehak*

**Calculus- please help**

Let f(t)=(t^2+3t+8)(2t^2+6). (a) f'(t)= (b) f'(4)=
*April 29, 2008 by John*

**calculus-can someone please help me with this ques**

Given the following polynomial f(x)=(x-1)(x-5), find A.the zeros and the multiplicity of each one b. where the graph crosses or touches the x-axis c.the number of turning points d. the end behavior Please show work.
*December 17, 2012 by Ladybug--Please help!!!!*

**integral Calculus**

Please help me with this integral problem: ʃ x^2(a^2-x^4)^2dx please help..thanks alot:)
*December 7, 2011 by WAN*

**Algebra**

In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. Of ...
*January 11, 2010 by Anita*

**calculus--please help!!**

Solve the inequality. x^3+9x^2-108 less than or equal to 0. Then write in interval noation. Please can you show me step by step on how you got the answer. I have tries and I am very confused.
*December 27, 2012 by Paul*

**Calculus- Help please**

I don't know how to do this, so I can't graph it. f(x)= 1/x-4 Thank you for the help.
*April 4, 2008 by Pam*

**calculus**

f(x)=X^3, f(a+h)-f(a)/h please help im so lost thanks
*August 29, 2011 by vicki *

**Calculus**

Please help!! Differentiate: y=(x^2-1)^(1/2)/x^2
*April 15, 2012 by Liz*

**PRE CALCULUS HELP PLEASE**

((ln(x))^1/2)/(ln(x^1/2))=6
*March 3, 2013 by jim*

**Calculus Help Please!**

If f(x)=Integral (t^3+6t^2+4)dt from 0 to x then f''(x)=?
*April 19, 2014 by Jay*

**Math, Calculus**

help Please... Differential Equations Problems... please give the complete solution, so that i can understand how it is derived... tnx in advance, god Bless... Here are the problems : 1.) y dx + (2x+3y)dy = 0 2.) (2xy + y^(2) ) dx - 2x^(2) dy = 0 ;y = e, x = e 3.) y( x^(2) + ...
*October 19, 2009 by Huck*

**calculus**

express in sinx 1 1 ---------- + -------- cscx + cotx cscx - cotx and express in cosx 1 + cot x ------- - sin^2x cscx = 1/sinx so what do i do w. that extra one on the top!?? im so confused cscx Your fractions aren't lining up. This question is also not calculus. Please do not...
*March 27, 2007 by linds*

**Pre-calculus need help!!**

Quadratic Formula 1.) x+6/x=-7 2.) 4x/x+4 + 3/x-1 = 15/x^2+3x-4 3.) x+3/x - 2/x+3 = 6/x^2+3x formula: -B+ sqrt B^2 + (-4)(a)(c)/2a f u only wanted to use the formula it's not necessary though. please help me! it's going to pass tomorrow!! please!
*February 18, 2013 by Isis*

**Calculus Help Please**

Consider the implicit function ln(xy)-cos^-1(x-1)=x a. Find dy/dx. b. Find y when x = 1. c. Find the equation of the tangent line in slope-intercept form when x = 1. Show steps please! Thanks!
*April 8, 2014 by Tenshi*

**Calculus Help Please Urgent!!!**

Prove that the integral on the interval [a,b] of x is equal (b^2-a^2)/2 integral a to be (x)dx = (b^2-a^2)/2 using the definition of a Definite Integral. This is the limit of a sum approach. show steps please!!! Thank you!!!
*April 30, 2014 by Anonymous*

**math calculus**

Please explain how it is (ln 4) ^8 2 x^-1 dx= (ln 8) C (ln 2) =(ln 4)
*December 2, 2007 by Scott*

**Calculus**

can someone please explain h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 5 7 0 4 1 1 4 5
*October 31, 2009 by Calculus*

**Calculus**

can someone please explain h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 5 7 0 4 1 1 4 5
*November 1, 2009 by Calculus*

**Calculus**

Differentiate x5^sqrt(x). Help please!
*March 22, 2010 by Stuck*

**calculus**

Evaluate the integral ((6x+7)/(x^(2)-8x+25))dx. Please and thank you.
*November 29, 2011 by Bianca*

**Calculus**

Stuck on this problem. Please help! 1+u^4/u du
*December 11, 2011 by Stacy*

**calculus 2**

please find the deriative
*February 16, 2012 by sean*

**calculus derivatives**

Please confirm: {(5x+2)^4/x^2-3x+1)^3}= 20(5x+2)^2(x^2-3x+1)^3 -3x^2(5x+2)^4 (x^2-3x+1)^2/(x^2-3x+1)^6
*July 19, 2012 by Laurie*

**Calculus**

Given F(2)=1,F'(2)=5,F(4)=3,F'(4)=7 and G(4)=2,G'(4)=6,G(3)=4,G'(3)=8, find: a)H(4)if H(x)= F(G(x)) b)H'(4)if H(x)= F(G(x)) c)H(4)if H(x)= G(F(x)) d)H'(4)if H(x)= G(F(x)) e)H'4 if H(x)= F(x)/G(x) Please Help!
*October 8, 2012 by Jack*

**Calculus Please Help**

integral t^2dt from x to x^2 f'(x)=?
*April 25, 2014 by Babak*

**CALCULUS: PLEASE HELP ME !!!!!**

PlEASE HELP ME!!! I WOULD GREATLY APPRECIATE IT!!!! Find the least upper bound (if it exists) and the greatest lower bound (if it exists) for the given set. Please show all work. (0, 2) (−∞, 1) {x : x2 < 4} {x : x4 ≤ 16} {5/2,7/3,9/4} {0. 9, 0. 99, 0. 999...
*March 21, 2009 by Anonymous*

**Math/ Calculus Please HELP!!!**

An object at rest begins moving horizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose, after exactly 2 seconds we measure the position of the object to be 3 feet to the right of the origin AND measure the object to be moving to the ...
*April 2, 2013 by Marto*

**Calculus**

What is the simplest solution to the Brachistochrone problem and the Tautochrone problem involving calculus? (I know that the cycloid is the solution but I need a simple calculus proof as to why this is the case)
*May 27, 2010 by Sam*

**calculus**

Determine the quadratic function f, whose graph is given. **The graph given is (0,-2) and (3,-11) The vertex is (3,11) and the y-intercept is -2 So, f(x)= **Please help me understand how to do this question. Could you please show work?**
*December 18, 2012 by Jimmy-can someone please help*

**calculus**

can someone please help me find all the zeros of the following polynomial. write the polynomial in factored form. f(x)=x^3-3x^2+16x-48 can you please show all work
*December 24, 2012 by Josh*

**calculus**

Let f and g be differentiable everywhere. If g is the inverse of f and g(-2)=5 and f'(5)=-1/2, then g'(2)=? PLEASE HELP! Thanks
*December 2, 2008 by Megan*

**calculus**

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

**calculus**

please help! Find the derivative of f when f(x) = 5 tan^-1 (e^-x) + 6e^x
*February 12, 2010 by Rachel :)*

**calculus**

Find the anti-derivative of x^4... Isn't it 4x^3+c? Please help... Thanks!
*August 26, 2010 by deb*

**AP Calculus AB**

The sum of x and y is 8. What is the maximum value of xy-x^2? Please help!
*December 12, 2010 by DUE TOMORROW NEED HELP!*

**calculus**

can you please help me solve this problem if dy/dx=ycosx and y=3 when x=0, then y=
*March 20, 2011 by christine*

**Calculus**

Evaluate the integral INT(x^4+6x^3+5x^2+8)/(x^2+6x+5)dx Please help.
*September 20, 2011 by Cesar*

**calculus**

please help ? deravative of cot^2x-csc^2x ?
*October 25, 2011 by mehak*

**Calculus **

Graph f(x) = 4^(x - 1) Please show work
*November 6, 2011 by Brett*

**Calculus **

Differentiate f(x)=(x^(3)-8)^(2/3) Please Show Work
*November 6, 2011 by Brett*

**math-calculus**

|2x-3|-|2x+5| = 0 i please need helps with this.
*January 18, 2012 by Shreya*

**math-calculus**

|2x-3|-|2x+5| = 0 i please need helps with this.
*January 18, 2012 by Shreya*

**calculus 2**

please find the inverse function
*February 16, 2012 by sean*

**calculus**

find F(x)' for x^3(3-x)^4.. i think answer is 3x^2(3-x)(3-3x)^4.. please help thanks
*March 25, 2012 by Rochelle F*

**Calculus help please!**

Find the Antiderivative of 3/(3x+5) with steps
*May 3, 2013 by Jordan*

**Calculus Please Help??**

Evaluate the integral (3x^2-16x-19)/(x^3-4x^2-3x+18)
*September 27, 2013 by Robin*

**Calculus Help Please!!! **

find y' and y by implicit differentiation. 2x^3 + 3y^3 = 8
*March 22, 2014 by Tenshi *

**math**

8. In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra, and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. ...
*November 30, 2009 by poo*

**calculus**

find linear approximations for each of the following and put a bound on the error of the estimate. 1. (7.985)^1/3 using f(x)=x^1/3 and a=8 2. (.9997)^100 using f(x)=x^100 and a=1 please help explain please too
*December 9, 2010 by C*

**Calculus**

Hi there I am having some troubles trying to do my calculus homework and I really need help trying to do this problem from my homework: Set up the problem and do not solve: The mass of the solid bounded by the surfaces 2x^2 + 2y^2= 9, z=0, z=3 with density function p(x,y)= x^...
*December 3, 2009 by shylo*

**Calculus**

The function f(x)=(x^4)-(10x^3)+(18x^2)-8 is continuous on the closed interval (1,8). Find the absolute minimum and maximum values for the function on this interval. Please help me!!! And please show your work so that i understand!! Thank you!!
*March 17, 2011 by Sam*

**Calculus Help Please!!! **

Use implicit diff. to find dy/dx of each of the following. In the following x,y and (a) are all variables. Show step by step please! Thank you! 1) y^2 = x^2+a^2 2) y^2+ay = x^2+ax+a^2
*March 16, 2014 by Josh*

**calculus please help**

what is the integral of x/(1+x^2)^2 dx This is a question of a past AP exam of calculus BC i know i have to use the substitution method where u=(1+x^2), du=2xdx. I have to find the integral but i'm just focused on the coefficient because i get a different answer for that part ...
*April 4, 2007 by david*

**Calculus Please Help**

Find k for which the limit below exists, and find the limit. lim x->1 (2x^2 + kx +4)/(x-1) Please show me how to do both procedures. Thanks
*February 17, 2011 by Catherine*

**Calculus**

Can someone please tell me how to derive V=4/3pi(r)^3 to get x^2+y^2=r^2?
*March 23, 2008 by Jess*

**calculus**

What is the domain for y=sqrt((x)/(x-1))? Can anyone please teach me how to do it? THANKS A LOT!
*September 7, 2008 by komi*

**pre-calculus**

Determine whether y is a function of x: x^2y-x^2+4y=0 Please help. Thanks.
*September 13, 2008 by Gina*

**calculus**

Find the derivative. Could you please show me the steps? y = x(5-x)
*November 18, 2009 by Cynthia*

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