class 12

Math

Algebra

Matrices

Which of the following is (are) NOT the square of a $3×3$ matrix with real entries? (a)$⎣⎡ 100 010 00−1 ⎦⎤ $ (b) $⎣⎡ −100 0−10 00−1 ⎦⎤ $ (c)$⎣⎡ 100 010 001 ⎦⎤ $ (d) $⎣⎡ 100 0−10 00−1 ⎦⎤ $

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