Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    2
    ReputationRep:
    Name:  ImageUploadedByStudent Room1458926470.982400.jpg
Views: 49
Size:  165.6 KB
    Hi Guys

    The picture attached is the mark scheme of a Fp3 past paper Q4 June 2010. I don't understand the first line, that why it's is a + sign rather than a - sign in the middle of the equation? I know this integrate by part, according to the by part formulae, I think it should be a -sign. Can anyone explain to me thanks.


    Posted from TSR Mobile
    Offline

    20
    ReputationRep:
    when you differentiate a - x you get a minus ?
    Offline

    1
    ReputationRep:
    Differentitate (a-x)^n and you get -n(a-x)^n-1 not n(a-x)^n-1
    remember the bit inside the bracket gets differentitated as well
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Luciferr)
    Differentitate (a-x)^n and you get -n(a-x)^n-1 not n(a-x)^n-1
    remember the bit inside the bracket gets differentitated as well
    Thanks, I forgot about the chain rule. I understand now thanks so much


    Posted from TSR Mobile
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by the bear)
    when you differentiate a - x you get a minus ?
    Thanks. I forgot apply chain rule. I get it now.


    Posted from TSR Mobile
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Are unpaid trial work shifts fair?
    Useful resources

    Make your revision easier

    Maths

    Maths Forum posting guidelines

    Not sure where to post? Read the updated guidelines here

    Equations

    How to use LaTex

    Writing equations the easy way

    Student revising

    Study habits of A* students

    Top tips from students who have already aced their exams

    Study Planner

    Create your own Study Planner

    Never miss a deadline again

    Polling station sign

    Thinking about a maths degree?

    Chat with other maths applicants

    Can you help? Study help unanswered threads

    Groups associated with this forum:

    View associated groups
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.