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If A={:[(3,3),(3,3)]:}andB={:[(1,-1),(-1...

If `A={:[(3,3),(3,3)]:}andB={:[(1,-1),(-1,1)]:}`, then find AB and BA. What do you observe ?

Text Solution

Verified by Experts

The correct Answer is:
`A={:[(0,0),(0,0)]:}`
We can observe that AB=BA=O and none of the two matrices A or B is null matrix.
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