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If A=[1 2 3-1] and B=[1 0-1 0] , find |A...

If `A=[1 2 3-1]` and `B=[1 0-1 0]` , find `|A B|` .

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Verified by Experts

Given,`A=[[1,2],[3,-1]]`
`B=[[1,0],[-1,0]]`
Thus,`AB=[[1,2],[3,-1]].[[1,0],[-1,0]]=[[1-2,0+0],[3+1,0+0]]`
=`[[-1,0],[4,0]]`
`|AB|=0`
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RD SHARMA-DETERMINANTS-Solved Examples And Exercises
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  3. If A=[1 2 3-1] and B=[1 0-1 0] , find |A B| .

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