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2. In matrix multiplication, AB AC does not always imply B C. Given matrix A below: I} 2 '1[0 :'l f4. Find all values of

2. In matrix multiplication, AB AC does not always imply B C. Given matrix A below: I} 2 '1[0 :'l \f4. Find all values of k that satisfy each of the following equations. (a) 0 k [k 1 1 2 2 = 0 -2 (b) 0 -3 = 0 5

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