Find the value of the determinant- A - begin vmatrix 78-1 1-2844lend vmatrix -1 A- 30B- 26C- -10D- 1

The correct option is B 26A = 7 amp; 1 2 amp;4 A = (7)(4) ( 2)( 1) = 28 2 = 26 ...

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Determinant

Find the valu...

Question

Find the value of the determinant.

$A = ∣ ∣ ∣ \begin{matrix} 7 & - 1 - 2 & 4 \end{matrix} ∣ ∣ ∣ =$

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