The integer represented by the determinant $\begin{bmatrix} 215 & 342 & 511 \ 6 & 7 & 8 \ 36 & 49 & 54 \end{bmatrix}$is exactly divisible by

Question

Dr. Abubacker · Accepted Answer

(c)
$\begin{bmatrix}
215 & 342 & 511 \
6 & 7 & 8 \
36 & 49 & 54
\end{bmatrix}$
$= 215(378 - 392) - 342(324 - 288) + 511(294 - 252)$
$= - 3010 - 12312 + 21462 = 6140$
Which is exactly divisible by 20

Q. The integer represented by the determinant $\begin{bmatrix} 215 & 342 & 511 \\ 6 & 7 & 8 \\ 36 & 49 & 54 \end{bmatrix}$is exactly divisible by

Explanation

Reviewed by Dr. Abubacker

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