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Math Help - inverse matrix

  1. #1
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    inverse matrix

    Find the size of the following matrix and its additive inverse matrix. Identify if it is a square, column or row matrix

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  2. #2
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    Hi Mathgirl7

    To find the size of your matrix, count the number of rows and the number of columns, what do you get?

    It is square if the number of columns equals the number of rows, does yours?

    It can only have an additive inverse if its a square matrix, does yours have one?
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