To prove: When the corresponding elements of either two entire rows or a columns are same then the value of determinant is 0.
Explanation of Solution
Given information:
The determinant of a 3 by 3 matrix.
Formula used:
For the matrix of order
The determinant is given as
Proof:
Consider a 3 by 3 matrix say,
Expand by minor about first row,
The value of determinant is 0.
Hence, it is proved that if the corresponding elements of either two entire rows or a columns are same then the value of determinant is 0.
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