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Math Help - Matrix

  1. #1
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    Matrix

    Matrix-image.jpgHello! There is a example that i dont get same result:/
    So ima post the problem and the formula or what u say hope some1 can understand because i get the last one to 2,0,1,x^2. I am wrong or the book
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    Last edited by Petrus; November 23rd 2012 at 12:48 PM.
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  2. #2
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    Re: Matrix

    Hey Petrus.

    The book is right.

    The expansion of the determinant of a 2x2 matrix with structure [a, b; c, d] (as represented in Octave) gives a result of a*d - b*c for the determinant.

    Try using the formula to expand the result.
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  3. #3
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    Re: Matrix

    But wtf im kinda confused... Ik the rule work so but look at the rule we did get.. Goosh this got confused
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  4. #4
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    Re: Matrix

    If you can outline the specific problem you have the other readers can do their best to address it.
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  5. #5
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    Re: Matrix

    Ok after alot thinking i did get ut i was just confusing myself ty
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