Thursday

August 21, 2014

August 21, 2014

Number of results: 13,215

**Calculus**

We are doing limits in Calculus, but now we are doing trig limits too and i do not get how to do any of them. For example ones like this, how do you do them? sec (x-1) / (x sec x) x approaches 0 ((3 sin (x)) 1 - cos(x)) / (x^2) x approaches 0 (sin (2x)) / (sin (3x)) x ...
*September 28, 2008 by Michael*

**calculus (limits)**

Use limits to explain why f(x)= (7-3X)/(X+9) has a vertical asymptote.
*January 21, 2012 by k*

**Maths Calculus Derivatives & Limits **

Using the definition of the derivative evaluate the following limits 1) Lim h---> 0 [ ( 8 + h )^1/3 - 2 ] / h 2) Lim x ---> pi/3 ( 2cosx - 1 ) / ( 3x - pi)
*October 25, 2011 by Yousef*

**Calculus**

TWO examples of each of the following: two sided limits and theorem on limits (SUM, difference, product, quotient, nth root, ).
*August 29, 2012 by Anne*

**Math**

I'm in Calculus AP and we are learning about limits. I'm having trouble with finding limits algebraically. So here's a sample that you can use to help explain this to me. Find the limit of lim x (arrow to the right) 1 x-1/x(squared)-1. Please help!
*September 5, 2011 by Michael*

**Calculus**

TWO examples of two sided limits and each theorem on limits.
*August 29, 2012 by Nicole*

**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*

**Calculus (Limits)**

Let f be defined as follows, where a does not = 0, f(x) = {(x^2 - 2a + a^2) / (x-a), if x does not = a 5, if x = a Which of the following are true about f? I. lim f(x) exists as x approaches a II. f(a) exists III. f(x) is continuous at x = a. A. None B. I, II, and III C. I ...
*October 22, 2011 by Mishaka*

**Calculus**

Find the Limits. lim [t^3 + 3t^2]/[t^3 - 4t^2] t->0
*October 8, 2011 by Nemo*

**Math - Calculus**

how to solve limits?
*July 9, 2012 by John*

**Calculus**

Following 2 questions are from a book at a point where LHopitals Rule, Squeeze Theorem etc. have not been discussed and limits (A) and (B) as given below are to be evaluated by simple methods like algebraic simplification etc. 1. Int. of (xlogx)dx from 0 to 1. Indefinite Int...
*March 12, 2014 by MS*

**Calculus**

Following 2 questions are from a book at a point where LHopitals Rule, Squeeze Theorem etc. have not been discussed and limits (A) and (B) as given below are to be evaluated by simple methods like algebraic simplification etc. 1. Int. of (xlogx)dx from 0 to 1. Indefinite Int...
*March 13, 2014 by MS*

**Calculus**

Using the first of these limits, find f'(3) if f(x)=4x^2+4x-2
*September 3, 2009 by Z32*

**Calculus**

Evaluate the following limits (x^2 + 2x - 8)/x-2 Lim x->2
*April 29, 2013 by Drew*

**Calculus**

Show, using limits, that f(x) = x2 x + 3, is continuous at x = 2.
*March 12, 2014 by Anonymous*

**Calculus - Limits**

lim x--> 3 (3 - x)/ (x^2 - 9) I know the answer is -1/6, but I can't figure out how to get there.
*September 19, 2007 by Jimmy*

**calculus**

Evaluate the Integral ∫1, 0 x^3(1+x^4)^6dx where 1=b 0=a for the limits
*April 30, 2011 by noell*

**Calculus**

Find the indicated limits. Lim x-> 1- sqrt 1 - 1/ x-1
*June 6, 2011 by Robo*

**calculus - limits**

limit as x approaches infinity; tan^(-1) (x^2 - x^4) any help is appreciated =D
*October 18, 2009 by Reen*

**calculus - limits**

Does the limit lim 2011t/3-(squareroot)t+9 exist ? t-0
*October 4, 2011 by Whitney*

**Calculus (Limits)**

f(x) is a function differentiable at x=1 and f′(1)=1/13. What is the limit of (x^3 - 1)/f(x) - f(1) as x approaches 1?
*July 21, 2013 by Drake*

**calculus - limits**

can someone help me determine that limit for the following function, as x --> -2? 2 - abs(x) / 2 + x
*October 4, 2009 by thomas*

**calculus**

find the derevative (hint try to use limits) (x^2010 - 1 )\(x -1 )
*February 21, 2010 by Anonymous*

**calculus**

find the derevative (hint try to use limits) (x^2010 - 1 )\(x -1 )as x approaches1
*February 21, 2010 by Anonymous 2*

**calculus-limits**

For f(x) = e^x sinx , what can be said about lim x -> negative infinty? Explain.
*June 16, 2010 by John*

**calculus**

Find the total area enclosed by the functions given below. y=x^2+2x+1 and y=2x+5 limits are -2 to 2
*May 1, 2012 by Lauren*

**Calculus, Limits**

Find the limit. lim t → ∞ (sqrt t + t^2)/(6t − t^2)
*January 20, 2014 by DeeDee*

**Statistics**

Multiple Choice Which of the following statements is true about the 95% confidence interval of the average of a sample? A) 95 of 100 avgs of samples will be within the limits of the confidence interval. B) There is a 95% chance the avg of the population to be within the limits...
*July 26, 2013 by Andrew*

**calculus**

Given the function: y = 2 - x - x^3 use limits to find the slope (and then the equation) of the tangent line at x =2.
*September 25, 2008 by Alex*

**calculus**

Given the function y = 2 - x - x^3 Use limits to find the slope (and then the equation) of the tangent line at x = 2
*September 30, 2008 by Erika*

**CALC-LIMITS**

F(X)= x-2/(x^2-4) is continuous at x=1 and why as limits approach from 1+ and 1-
*December 19, 2012 by daryl*

**Calculus**

Evaluate the triple integral _E (xy)dV where E is a solid tetrahedron with vertices (0,0,0), (4,0,0), (0,1,0), (0,0,4) I just can't seem to find the limits, of x,y and z
*April 26, 2010 by Salman*

**calculus, limits, l'hopital**

Find the limit as x->0 of (2-2cos(x))/(sin(5x)) Mathematically I got 2/5, but on the graph it appears to be 0.
*February 13, 2011 by Kate*

**Calculus**

Use the definition of continuity and properties of limits to show that the function is continues at given a. f(x)=x^2+sqrt(7-x) a=4
*September 12, 2011 by Kevin*

**calculus**

Rotate the region enclosed by the given functions around the x-axis. Determine the volume. y=x^2+2x+1 and y=2x+5 limits are -2 and 2
*May 1, 2012 by Lauren*

**college calculus**

I don't know how to solve this indefinite integral with both limits as variables: ^x^3 (z^4+1)dz ⌄ln(x) If you could explain I'd appreciate it.
*November 30, 2013 by tatiana*

**calculus**

Evaluate the limits without using a calculator. Justify all steps in the solutions. lim x-->0 x^7cos(3/x)
*February 12, 2011 by Janet*

**calculus**

Evaluate the limits without using a calculator. Justify all steps in the solutions. lim x-->0 x^7cos(3/x)
*February 13, 2011 by Janet*

**calculus**

Rotate the region enclosed by the given functions around the x-axis. Determine the volume. y=sqrt(sinx) ; y=0 ; x=0 ;x=pi limits are 0 to pi
*May 1, 2012 by Lauren*

**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*

**Maths (limits)**

how do i evaluated these limits: lim x --> 3 ((square root of x^2 +16)- 5)/(x^2 - 3x) lim x--> to infinity (2+ 100/x)
*February 17, 2010 by Ren*

**Calculus**

I'm not sure how to calculate limits from graphs. I've tried many times but I can't figure it out. Are there any sites or tips you can give me? Thank you very much, I really appreciate it.
*September 16, 2007 by Jacob*

**Calculus I - Limits**

How do I find lim x-> infinity √(x^2 + x) - √(x^2 - x)
*June 13, 2010 by John*

**calculus**

Compute each of the following limits if they exist. lim 3x^(2)-x-2 x->2 lim (x^(2)+x-6)/(x-2) x->2
*October 26, 2012 by June*

**Calculus**

Find the limits if they exist lim_x->0 x/|x| lim_x->0+ sqr(x+4)
*October 22, 2012 by Nero*

**Math Limits **

(x^n-1)/((x-1) )=(x-α^1 )(1-α^2 )ׅ..(x-α^((n-1)) ) How do we prove that n = the multiplication of the second term using limits and l'hopital's rule.
*February 28, 2013 by Blah*

**calculus**

I don't know if I'm typing it in wrong into my graphing calculator but I need to estimate the limits of sin(8 theta) / theta
*January 31, 2012 by sara*

**Calculus ( finding limits)**

Find the limit as x-->-inf (x+2)^(3/2)+1 ----------I know that the answer is infinity but I don't know how to get this answer by hand. Could someone please help me? Thanks a lot!
*March 6, 2010 by Jess*

**Calculus**

Hey, we covered limits at the beginning of the year, but I cannot remember how to do them at all. >>>what is the limit, as x approaches 2, of ((1/x )-(1/2))/(x-2)? Please go step by step!
*April 18, 2011 by Rachel*

**calculus**

Find the limits Lim(sin kt/t) t approaches 0 and (K is constant) How do you start this and go about it stepwise? Does knowing (K constant) help me to solve this?
*January 20, 2012 by John*

**Calculus**

F(x)=|x-5| evaluate the following limits lim x->5- ( f(x)-f(5))/(x-5) lim x->5+ ( f(x)-f(5))/(x-5)
*October 10, 2012 by Marissa*

**Calculus**

Let R be the region bounded by the curve x=9y-y^2 and the y- axis. Find the volume of the solid resulting from revolving R about the line y= -6. I believe the integral limits are from y=0 to y-9 i set up h(x) = 9y-y^2 r(x) = y+6 I am not sure if this is correct Can anyone help...
*December 4, 2013 by Salome*

**Calculus**

lim(x->infinity) sqrtx sin(1/sqrtx) Someone please start me off. I don't know how to find the limits of trigonometric functions.
*November 5, 2008 by Samantha*

**calculus (limits)**

lim h>0 sqrt(1+h)-1/h not sure how to factor this; not allowed to use L'Hopital's Rule. (that isn't taught at my school until Calc II & I'm in Calc I).
*January 22, 2011 by John*

**Calculus**

I need some help on getting ideas for my limits & continuity calculus project! For the limits project: I have to conduct an "interview with a limit" (Q&A format).I have to include factual information like definitions, properties, theorems, etc. I also have to include sketches...
*October 19, 2008 by RJ*

**calculus**

Evaluate the following limits after identifying the indeterminate form. Use Hospital's rule. d) lim x_0+ (xe^(2x) + 1)^(5/x) e) lim x_(Pi/2)+ (1 + sec3x)^(cot3x) Thank you!
*April 26, 2012 by Tommy*

**Calculus 1**

Evaluate the following limits after identifying the indeterminate form. Use Hospital's rule. d) lim x_0+ (xe^(2x) + 1)^(5/x) e) lim x_(Pi/2)+ (1 + sec3x)^(cot3x) Thank you!
*April 26, 2012 by Tommy*

**Calculus/College Algebra**

I'm so lost. We're working on limits for this assignment and I get that, but my difficulty lies in breaking down the original problem. The problem is: Find the limit: lim (x->5) The numerator is (the square root of 9-x) -2 and the denominator is x-(the square root of x+20...
*February 7, 2007 by Amy*

**calculus**

Find the limits lim_x->2 x^3+x lim_x->2 (x^2-4)/(x-2)
*October 22, 2012 by Naomi*

**Legal Environment of Bus**

Ethics Question (Legal Environ of Bus)? Various industries have lobbied for legislative restrictions on tort liability. The nuclear power industry has long been protected by a statute that limits its upper-dollar liability in the event of a serious accident. Many companies in ...
*March 4, 2012 by shirley*

**Absolute Value and Limits**

solve for limits of 1+ and 1- for this function: (x^2 + abs (x-1) - 1)/ abs (x-1) i dont know how to simplify abs. value expression times polynomial. can someone please help.
*March 13, 2013 by Angie*

**Calculus - MathMate Please help**

I asked this question on last thursday and u told me that the bottom limit for the 1st and the right limit for the 2nd area is missing? The question that i posted had no other information and i dont know why you said that the limits are missing. There is no other limits that ...
*November 29, 2010 by K*

**consumer math**

amy miller's insurance policy has a $218.00 premium for 25/100 bodily injury limits and $25,000.00 property damage limits. the collision premium is $74.00. amy's driving-rating factor is 2.4. what is her annual premium?
*February 25, 2013 by dylan*

**Calculus-Limits**

i have no clue how to start it. rationalizing it seems to tedious. how do i do this thanks evaluate the limit as h -> 0 ((fourth root(3 + h) - 2(3+h) - fourth root(3) + 6))/h
*April 29, 2013 by Liliana*

**calculus - limits**

In the theory of relativity, the mass of a particle with velocity v is m = m0 / sqrt(1-v^2 / c^2) where m0 is mass of the particle at rest and c is the speed of light. What happens as v approaches c^-?
*October 1, 2009 by Marina*

**calculus**

Find lim (with x under it) (x^2-1)/x or state that the limit does not exist. I'm so lost with what to do with limits...I tried to simplify the expression to lim x+lim -1/x, but from there I'm pretty dumbfounded. If anybody could help me out I'd really appreciate it.
*May 23, 2008 by Lisa*

**Calculus**

How would you find the derivative of f(x)=1/sqrtx using limits? I know how to do problems with a fraction or a square root, but I can't figure out how to do one with both. I have tried a few different starts, but always end up getting stuck.
*September 20, 2009 by Katie*

**Calculus**

Determine the limit of the trigonometric function: Limit as x approaches pi/4 of (1-tanx)/(sinx-cosx) I need step by step help using the special trignometric limits theorem.
*September 26, 2012 by Kayla*

**stats**

4. Data from the 2008 General Social Survey (GSS) sample show that the mean number of children per respondent was 1.94 with a standard deviation of 1.70. A total of 2,020 people answered this question. (a) Estimate the population mean number of children per adult using a 90% ...
*July 26, 2012 by taylor quenzler*

**calculus-limits??**

i keep on doing something wrong on this problem,i guess im forgetting to add or subtract some number. use f'(x)=lim h-->0 f(x+h)-f(x)/h to find the limit: lim h-->0 sin^(3)4(x+h)-sin^(3)4x/h
*March 24, 2010 by JJ*

**Calc Limits**

lim (1+x)^1/x. Give an exact answer. x->0 This reads: The limits as x approaches zero is (1 plus x) to the 1 divided by x. The log of each term is (1/x) ln (1 + x) = ln (1+x)/x Using L'Hopital's rule for the limit of f(x)/g(x), the limit if the log is lim f'/g' = lim [1/(1+...
*February 16, 2007 by Robert*

**calculus, limits, l'hopital**

Using l'hopital's rule, find the limit as x approaches infinity of (e^(6/x)-6x)^(X/2) I know l'hopital's rule, but this is seeming to be nightmare. I just don't seem to get anywhere.
*February 9, 2011 by Kate*

**Statistics**

Construct the appropriate control chart for the observations listed below, using 3 sigma limits. Product Number - Number of defects 1 - 3 2 - 3 3 - 6 4 - 5 5 - 3 6 - 5 7 - 2 8 - 2 9 - 3 10 - 4 11 - 6 a. Determine the upper and lower control limits. b. Discuss the chart you ...
*January 30, 2009 by Johnny*

**Calculus**

Find the following limits algebraically or explain why they dont exist. lim x->0 sin5x/2x lim x->0 1-cosx/x lim x->7 |x-7|/x-7 lim x->7 (/x+2)-3/x-7 lim h->0 (2+h)^3-8/h lim t->0 1/t - 1/t^2+t
*March 15, 2012 by angie*

**intro to computers**

your boss is considering a BYOB program for your company. he asks you if there are any negatives to such a program. what do you tell him? a.it limits the freedom of the user to access the websites and applications.b.it introduces security and control problems. c. it requires ...
*October 30, 2013 by mary*

**into computers**

Your boss is considering a BYOD program for your company. He asks you if there are any negatives to such a program. What do you tell him? A. It limits the freedom of the user to access websites and applications. B. It introduces security and control problems. C. It requires ...
*November 20, 2013 by Ava*

**calculus, limits, l'hopital**

Using l'hopital's rule, find the limit as x approaches zero of (e^(6/x)-6x)^(X/2) I know l'hopital's rule, but this is seeming to be nightmare. I just don't seem to get anywhere. I mistyped the first time I posted this question.
*February 9, 2011 by Kate*

**Math - Beginning Calculus**

Why does lim10^(3-x) as x approaches infinity = 0? And why does lim10^(1/x) as x approaches infinity = 1? Are properties of infinite limits involved here?
*February 6, 2010 by Stuck*

**Calculus (Derivatives)**

What is the derivative of the this functon? g(x) = -500/x, x cannot equal 0. I know that in order to fnd the derivative I need to put the function into the equation for evaluating derivatives as limits. lim as h -> 0 (f(x+h) - f(x))/h I did this, but I am having ...
*November 1, 2011 by Mishaka*

**Introduction to computers**

Your boss is considering a BYOD program for your company. He asks you if there are any negatives to such a program. What do you tell him? A. It limits the freedom of the user to access websites and applications. B. It introduces security and control problems. C. It requires ...
*November 7, 2013 by Lisette*

**Calculus I**

We're reviewing limits from the previous chapter, but I'm still having some difficulty with some problems: lim tan(pi(x/4)) as x-> -7 lim (x^2 - x^3(cos(1/x))/3x^2 as x-> 0 I know the answer to the first problem is 1 and to the second problem it's 1/3 but I'm not sure ...
*January 30, 2012 by Emily*

**Calculus**

I am sorry. I am really struggling with limits. I am not sure of an answer for this problem either: Show an example that the limit as x goes to a f(x) goes to [f(x)+g(x)] may exist even though neither the limit as x goes to a f(x) approaches f(x) or g(x) exist.
*September 18, 2010 by John*

**Calculus **

Determine the behavior of limits A. Limit as x approaches 1 of: (log x)/((x-1)^2) B. Limit as x approaches infinity of: ((x-1)^2)/(log x))
*April 21, 2014 by Tim*

**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*

**Calculus; Limits**

Evaluate limit, x -> a, [(x + 4a)^2 - 25a^2] / [x - a] My work: = limit, x -> a, (x^2 + 8ax + 16a^2 - 25a^2) / (x - a) = limit, x -> a, (x^2 + 8ax - 9a^2) / (x - a) = limit, x -> a, (x + 8a - 9a^2) / (-a) = (a + 8a - 9a^2) / (-a) = 9a^2 - 8a + 1 Textbook Answer: ...
*April 15, 2008 by Anonymous*

**Calculus- limits**

f(x) = x + 7 if x < or equal to 5 F(x) = 7 if x >5 what is the limit as x is approaching 5 from the left side????? I know that the limit as x approaches to 2 does not exist and that the limit as x is approaching 5 from the right side is 7
*April 15, 2008 by Ethan*

**astronomy**

The parallax of the red giant Betelguese is just barely measurable and has a value of about 0.005 arc seconds. What is its distance? Suppose the measurement is in error by + or -0.003 arc seconds. What limits can you set on its distance? 1/0.005 = 200 parsecs. Convert that to ...
*April 30, 2007 by rohit*

**calculus**

Which of the following best describes the limit as x approaches 4 of the quotient of 2 times x divided by the quantity negative 2 plus square root of x ? It exists and equals 4 It fails to exist because it is unbounded. It fails to exist because its one-sided limits are not ...
*February 5, 2014 by lisa*

**Calculus..more help!**

I have a question relating to limits that I solved lim(x-->0) (1-cosx)/2x^2 I multiplied the numerator and denominator by (1+cosx) to get lim(x->0) (1-cos^2x)/2x^2(1+cosx) = lim(x->0)sin^2x/2x^2(1+cosx) the lim(x->0) (sinx/x)^2 would =1 I then substituted the ...
*February 21, 2009 by Alex*

**How to get quick responses to your math questions**

Math is a wide subject, ranging from K to 11, college and university. Then there is algebra, trigonometry, geometry, arithmetic, calculus, number theory, ... etc. Not all teachers answer all math questions (many do). If you would give a little more detail on which branch of ...
*May 25, 2013 by MathMate*

**calculus**

A machine on an assembly line fills cans with quantities of food that are normally distributed with a standard deviation of 0.057 pounds. The mean quantity filled is estimated using a sample of 100 cans. What is the difference between the upper and lower limits of the 95% ...
*November 27, 2012 by taz*

**Integral calculus**

A particle is put inside an accelerator at time t=0. After t sec, its velocity is 10^5t^2 m/s. How far does the particle move during the first 10**-2 sec? distance= int velocity dt = INT 1E5 t^2 dt limits 0 to 1E-2 sec
*April 13, 2007 by Febby*

**Calculus: limits**

Evaluate the limit at t --> 25: [25 - t] / [5 - √(t)] I multiplied it by √(x + 3) to get rid of the square root on the bottom. However, once I'm done distributing it out, I'm not sure I'm doing it right. I get [x√(x+3) + 2x - 2] / [x + 5] Once I plug in 25...
*October 15, 2009 by Kay*

**Calculus**

Find the indicated limits. If the limit does not exist, so state, or use the symbol + ∞ or - ∞. f(x) = { 2 - x if x ≤ 3 { -1 + 3x - x^2 if x > 3 a) lim 3+ f(x) x->3 b) lim 3- f(x) x->3 c) lim f(x) x->3 d) lim ∞ f(x) x->3 e) lim -∞ f...
*October 8, 2011 by Blue*

**Calculus**

Find the indicated limits. If the limit does not exist, so state, or use the symbol + ∞ or - ∞. f(x) = { 2 - x if x ≤ 3 { -1 + 3x - x^2 if x > 3 a) lim 3+ f(x) x->3 b) lim 3- f(x) x->3 c) lim f(x) x->3 d) lim ∞ f(x) x->3 e) lim -∞ f...
*October 9, 2011 by Chris*

**Calculus**

Find the indicated one sided limits of f. f(x)= (x^2+8)/(x^2-25) what is the limit as x goes to -5+(from the right side)? What is the limit as x goes to 5+(from the right side?
*January 25, 2013 by Anonymous*

**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*

**statistics**

if i have k = 36.86 +/- 4.78 and v = 113 +/- 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ...
*January 18, 2010 by jemmy*

**statistics**

if i have k = 36.86 +/- 4.78 and v = 113 +/- 9.92 both using 95% confidence limits and no true values of k or v given am i right in saying that accuracy cannot be determined and that v is a more precise measurement my question was to comment on what can be said about the ...
*January 18, 2010 by jemmy*

**Calculus**

Evaluate the following limits. lim as x approaches infinity 6/e^x + 7=____? lim as x approaches negative infinity 6/e^x+7=____?
*September 29, 2009 by Z32*

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