Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Simple integration problem

  1. Sep 7, 2011 #1
    1. The problem statement, all variables and given/known data
    Find the area between f(x)=(x-1)^3 and f(x)=(x-1) on the interval from 0 to 2.


    2. Relevant equations



    3. The attempt at a solution Working it out Im using the top function minus the bottom function from 0 to 1 and then from 1 to 2. The graphs cross at x=0,x=1,andx=2.
    Im geting - (1/2) for my final answer and the answer is 1/2. It's been awhile since if done any calculus so I dont know why my answer is the wrong sign.
     
  2. jcsd
  3. Sep 7, 2011 #2
    If you show us what you did, I'll be happy to point out what's wrong...
     
  4. Sep 7, 2011 #3
    Nevermind it will take me 30 mins of wasted time to type out all that goodbye
     
  5. Sep 7, 2011 #4

    ehild

    User Avatar
    Homework Helper

    You took the wrong functions to "top" and "bottom". Plot them to see.

    ehild
     
  6. Sep 7, 2011 #5
    That was what it was. Thanks
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook