Question

If the determinant of matrix A of order 3$\pink\neq$3 is of value 4, then write the value of |3A|.​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

3×J Matrix , ∣A∣=4

We know that ∣adj A∣=∣A∣

n−1

here n=3

So, ∣adj A∣=4

2

=16

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