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9 October, 07:45

Calculate the inverse of the matrix and find the values for a, b, c, and d [4,12,1,10] A^1=[a/14, b/7, c/28, d/7]

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  1. 9 October, 10:25
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    a: 5

    b: - 3

    c: - 1

    d: 1

    Step-by-step explanation:

    Given the matrix:

    A = [4 12

    1 10]

    its determinant is: 4*10 - 1*12 = 28

    the inverse of A is:

    1/28*[10 - 12

    -1 4]

    [10/28 - 12/28

    -1/28 4/28]

    A^-1 = [5/14 - 3/7

    -1/28 1/7]
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