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Find AB and BA when A = [(2,-1,3),(-...

Find AB and BA when
`A = [(2,-1,3),(-3,2,0),(5,1,-1)] , B = [(-3,2,-2),(0,5,2),(1,-2,1)]`
If AB = BA ? What conclusion do you draw ?

Text Solution

Verified by Experts

The correct Answer is:
`[(3,-7,-1),(9,4,7),(-16,17,-1)],[(-17,6,-8),(-3,12,-2),(13,-4,2)]` No
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Knowledge Check

  • If A = [(2,3,4),(-1,2,5)] and B = [(1,2),(3,-4),(-5,6)] then value of AB is

    A
    `[(9,16),(20,40)]`
    B
    `[(-9,16),(30,40)]`
    C
    `[(-9,16),(30,-40)]`
    D
    None of these

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