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IF A=[{:(-1,2),(0,1):}] then find AA'. D...

IF `A=[{:(-1,2),(0,1):}]` then find AA'. Do A and A' commute with respect to mulitplication of matrices?

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If A=[(-1,2),(0,1)] then A A^(T) . Do A and A^(T) commute with respect to multiplication of matrices ?

If A=[{:(1,0),(0,1):}] , find A^(2) .

Knowledge Check

  • If A=[(2,0,-1),(1,1,2),(-1,1,0)] then "AA"^(T)=

    A
    `[(1,0),(0,1)]`
    B
    `[(-1,0),(0,-1)]`
    C
    `[(5,0,-2),(0,6,0),(-2,0,2)]`
    D
    `[(0,0,0]`

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