SOLUTION: Verify that the matrix has no inverse [ -1 2 0 ] [ 0 0 0 ] [ 1 2 4 ]

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Question 625216: Verify that the matrix has no inverse
[ -1 2 0 ]
[ 0 0 0 ]
[ 1 2 4 ]

Answer by jim_thompson5910(28476) About Me  (Show Source):
You can put this solution on YOUR website!
If you evaluate the determinant of that given matrix, you'll find that the determinant is zero. Since the determinant is zero, this means that this matrix has no inverse.