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College Algebra

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If CI=C, find I

C= 2 3
0 1
1 0

  • College Algebra -

    C * x = C
    x = C/C
    C/C = 1
    x = 1

  • College Algebra -

    I is always all zeros except the main diagonal.
    So, here
    I =
    1 0
    0 1

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