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19 April, 16:39

Find the specified element in the inverse of the given matrix

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  1. 19 April, 18:09
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    What is the given matrix?

    you didn't show a matrix.

    the components of the matrix are the elements.

    and the elements of the inverse matrix are the elements of the inverse matrix

    1)

    so if matrix A is 1 4 1

    2 5 2

    3 6 3

    2)

    14114

    25225

    36336

    3)

    15 24 12

    15 12 24

    4)

    [A] = (15+24+12=51) - (15+12+24=51)

    [A]=0

    5)

    52 23 25

    63 23 36

    41 11 14

    63 33 36

    41 12 14

    52 12 25

    6)

    15-12 6-6 12-15

    12-6 3-3 6-12

    8-5 2-2 5-8

    7)

    3 0 - 3

    6 0 - 6

    3 0 - 3

    8)

    (+) 3 (-) 0 (+) - 3

    (-) 6 (+) 0 (-) - 6

    (+) 3 (-) 0 (+) - 3

    =

    3 0 - 3

    -6 0 6

    3 0 - 3

    9)

    3 - 6 3

    N = 0 0 0

    -3 6 - 3

    10) the inverse of [A] = 1/|A|*[N]

    which is in this case ⁻A = 0

    because |A|=0
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