CAPE Pure Mathematics Unit 2 · May/June 2019 · Paper 1 · Question Q41
The matrix \mathbf{M} = \begin{pmatrix} 2 & -5 & 6 \\ 1 & 1 & -2 \\ a & 2 & 2 \end{pmatrix}.
\nIf \det \mathbf{M} = 22, then a =
- (A)
-3 - (B)
-2 - (C)
3 - (D)
4
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