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If A=[2 1 4 4 1 5] and B=[3-1 2 2 1 3] ....

If `A=[2 1 4 4 1 5]` and `B=[3-1 2 2 1 3]` . Write the orders of `A B` and `B A` .

Text Solution

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Given: `A=[(2, 1, 4),( 4, 1, 5)]` and `B=[(3,-1),( 2, 2),( 1, 3)]`
`AB=[(2, 1, 4),( 4, 1, 5)][(3,-1),( 2, 2),( 1, 3)]`
`AB=[(13,12),(20,13)]`
order of `AB=2xx2`
`BA=[(3,-1),( 2, 2),( 1, 3)][(2, 1, 4),( 4, 1, 5)]`
`BA=[(2,2,7),(12,4,18),(14,4,19)]`
order of `BA=3xx3`
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