Answer :
Now,
We know that a determinant of a 3x3 matrix is calculated as
= 3[0 – (-1)(-5)] +1[0 – (-1)(3)] – 2[0 – 0]
= 3(-5) + 1(3) – 0
= -15 + 3
= -12
The determinant of the above matrix is -12
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