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Matrices

Question
CBSEENMA12036253
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Let A open parentheses table row 0 0 cell negative 1 end cell row 0 cell negative 1 end cell 0 row cell negative 1 end cell 0 0 end table close parentheses. The only correct statement about the matrix A is

  • A is a zero matrix

  • A2 = I

  • A−1 does not exist

  • A = (−1)I , where I is a unit matrix

Solution

B.

A2 = I

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