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

    13
    ReputationRep:
    Name:  unspecified.jpeg
Views: 83
Size:  49.1 KB I seem to have all the right numbers but in the wrong order. I don't know how to fix it. Attachment 516317516319Attachment 516317516319516350
    Attached Images
      
    Offline

    3
    ReputationRep:
    (Original post by Airess3)
    Name:  unspecified.jpeg
Views: 83
Size:  49.1 KB I seem to have all the right numbers but in the wrong order. I don't know how to fix it. Attachment 516317516319Attachment 516317516319516350
    Zacken
    Offline

    22
    ReputationRep:
    (Original post by Airess3)
    ...
    Have you used the transpose operation?
    Offline

    12
    ReputationRep:
    What is your reasoning by the current positioning in your Matrix? If you 'cross out' the horizontal and vertical elements adjacent to the position in the matrix of co factors you are trying to find, for instance your m21 point should be the top left element of the matrix before it is transposed, if he's up Zacken will probably explain a lot better than me though


    Posted from TSR Mobile
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by Zacken)
    Have you used the transpose operation?
    Yes
    Offline

    11
    ReputationRep:
    (Original post by Airess3)
    Yes
    Some of your cofactors are wrong. For example your M_{13} should be M_{11}.
    You also appear yo have used the transpose operation incorrectly, though I'm not clear on what it is you have done.
    The operation swaps rows and columns, so M_{ij} becomes M_{ji} after transposing, in your case this is for i,j \in \{1,2,3\}.
 
 
 
  • 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
    What's your favourite Christmas sweets?
    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.