3 marksMatrices and Systems of Linear Equations

CAPE Pure Mathematics Unit 2 · May/June 2008 (T&T) · Paper 2 · Question 6(b)(ii)b)

Let B = \begin{pmatrix} -4 & 0 & 2 \\ 0 & 6 & -4 \\ 2 & -4 & 2 \end{pmatrix}.

Deduce the inverse A^{-1} of A.

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