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ICSE Class X Math 2019 Paper

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Question : 21 of 32
Marks: +1, -0
Given [42−11]M=6I\begin{bmatrix} 4 & 2 \\ -1 & 1 \end{bmatrix} M = 6 I, where MM is a matrix and II is unit matrix of order 2×22 \times 2.
(i) State the order of matrix M.
(ii) Find the matrix MM.
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