-3
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I know the determinant of this matrix is zero. Can someone explain how to obtain it?

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1
  • $\begingroup$ Try rearranging rows and columns. If any two rows or columns are same , then determinant is 0 $\endgroup$
    – Fawad
    Oct 1, 2016 at 4:15

1 Answer 1

5
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Step 1 :

Divide $C_5$ with 2.

Step 2 :

Since $C_5$ and $C_{11}$ are same, determinant of given matrix is 0.

Why determinant is zero when two rows or columns are same?

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