Sunday, April 22, 2012

How To Calculate Determinant,Adjoint,and Inverse a 3X3 Matrix

Example Matrix :








1. Find Determinant:  The determinant will usually show up in the denominator of the inverse. If the determinant is zero, the matrix won't have an inverse.
2. Find Adjoint : M is referred to as minor.
3. Find the determinant of each of the 2x2 minor matrices.
4. Transpose to get Adjoint
5. Find Inverse With this Formula :
6. Calculate with The Formula Above and get the Inverse.

11 comments:

  1. AnonymousApril 16, 2013 at 6:51 AM

    Thank you very berry much :o

    ReplyDelete
  2. estherJuly 31, 2013 at 12:14 AM

    Wow,I have searched all over the net for this and you are the best I could understand.thank you so much.

    ReplyDelete
  3. UnknownAugust 18, 2013 at 10:38 AM

    Wow great, the best of the best
    Thanks

    ReplyDelete
  4. AnonymousSeptember 15, 2013 at 6:09 AM

    Awesome :)

    ReplyDelete
  5. AnonymousSeptember 29, 2013 at 1:17 PM

    Thanx alot... this was really easy to understand.. :)

    ReplyDelete
  6. Gandhy OnlyDecember 31, 2013 at 9:28 AM

    very sorry because picture on number 3 was unfortunately removed :(
    i will restore it as soon as possible :)

    ReplyDelete
  7. AnonymousFebruary 8, 2014 at 4:02 PM

    Thanks you

    ReplyDelete
  8. AnonymousMay 22, 2014 at 7:30 PM

    Very helpful. Thank you! but It's Co-factor instead of Minor isn't it? Because if we take it as a minor we'll get issues in some signs like of M12,M21,M23,M32!

    ReplyDelete
    Replies
    1. AnonymousMay 22, 2014 at 7:35 PM

      and sorry if that is what is done in pic 3...because it isn't visible to me :(

      Delete
  9. AnonymousNovember 30, 2014 at 11:56 AM

    wow great way of your method

    ReplyDelete
  10. Suresh YenneJanuary 18, 2017 at 7:13 PM

    Very nice.. Im very thankful to you...

    ReplyDelete

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