If A `= [(1,2,"x"),(0,1,0),(0,0,1)]` and B `= [(1,-2,"y"),(0,1,0),(0,0,1)]` and AB = I3, then x + y equals

English

If A x=[12x010001] and B y=[1-2y010001] and AB = I3, then x + y equals -

If A `= [(1,2,"x"),(0,1,0),(0,0,1)]` and B `= [(1,-2,"y"),(0,1,0),(0,0,1)]` and AB = I₃, then x + y equals

MCQ

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