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If A= ( array c -1 0 0 array ), B= ( array c +1 0 0 array ) be two matrices, then A B^T is a non-zero matrix for | | not equal to

Options

  1. A2
  2. B0
  3. C1
  4. D3

Correct answer

C. 1

Step-by-step solution

Let A= ( array c -1 0 0 array ), B= ( array c +1 0 0 array ) be two matrices. aligned & A B^T= ( array c -1 0 0 array )( +1 0 0) & = ( array ccc ^2-1 & 0 & 0 0 & 0 & 0 0 & 0 & 0 array ) & aligned

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