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If I = [(1,0),(0,1)] and E = [(0,1),(0,0...

If `I = [(1,0),(0,1)] and E = [(0,1),(0,0)]` then show that `(aI + bE)^(3) = a^(3)I+3a^(2)bE` where I is identify matrix of order 2.

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The correct Answer is:
`a^3I+3a^2bE`
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