Evaluate \(\begin{vmatrix}-1 & -1 & -1\\3 & 1 & -1\\1 & 2 & 1\end{vmatrix}\)

a

-4

b

-12

c

4

d

-2

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Correct Option
a

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Discussions (3)

A.koko
1 year ago

the answer was said to be A in explanation but it chose D

faruqdaniel01
2 months ago

can someone explain this topic please

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