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A10 Math
Question 15
2017 December(A10) Math Question 15
Word Problems
- Addition & Subtraction
Choice E
$$4\begin{bmatrix}-1&2\\0&-4\\ \end{bmatrix}=\begin{bmatrix}-1\times4&2\times4\\0\times4&-4\times4\\ \end{bmatrix}=\begin{bmatrix}-4&8\\0&-16\\ \end{bmatrix}$$
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