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Show that the matrix A = [(1,2,1),(3,2,3...

Show that the matrix `A = [(1,2,1),(3,2,3),(1,1,2)]` is non-singular and find `A^(-1)`.

Text Solution

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The correct Answer is:
`[(-1//4,3//4,-1),(3//4,-1//4,0),(-1//4,-1//4,1)]`
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Knowledge Check

  • If the matrix [(1,2,x),(5,7,9),(1,2,3)] is singular then x=

    A
    1
    B
    2
    C
    3
    D
    4

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    A
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    A
    non singular
    B
    singular
    C
    skew symmetric
    D
    symmetric

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