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Let C = column matrix [1 2 3 1] and D = row matrix[−1 2 1...

Let C = column matrix [1 2 3 1] and D = row matrix[−1 2 1 4] . Prove that (CD)^10 is the same as C(DC)^9D and do the calculation by hand.

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Evaluate both the terms separately and then from the result obtained establish the equality.

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