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in Mathematics by (75.1k points)
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If A = [(1, 2), (-2, -1)] and ϕ(x) = (I + x)(I - x)-1, then ϕ(A) = ....

(a) [(1, 0), (0, 1)]

(b) [(0, 1), (-1, -1)]

(c) [(1, 1),(-1, 0)]

(d) [(0, 1), (1, 0)]

1 Answer

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by (70.5k points)
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Best answer

The correct option (b) [(0, 1), (-1, -1)]

Explanation:

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