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प्रश्न
If A = [aij]2×2, where aij = i – j, then A = ______
उत्तर
`[(0, -1),(1, 0)]`
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Solution:
AB = `[(4, 3, 2),(-1, 2, 0)] [(1, 2),(-1, 0),(1, -2)]`
AB = [ ]
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