Let A be the 2 2 matrix with elements a11 =...

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Let A be the 2 × 2 matrix with elements a₁₁ = a₁₂ = a₂₁ = +1 and a₂₂ = -1. Then the eigen values of the matrix A¹⁹ are

A. 1024 and -1024

B. 1024√2 and -1024√2

C. 4√2 and -4√2

D. 512√2 and -512√2

Answer: Option D

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