1. AB = {3 - 2; 1 - (-2)} = {1; 3}
2. a + b = {2 + 3; -5 + 4} = {5; -1}
3. a - b = {3 - 4; 2 - (-2)} = {-1; 4}
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Answers & Comments
1. AB = {3 - 2; 1 - (-2)} = {1; 3}
2. a + b = {2 + 3; -5 + 4} = {5; -1}
3. a - b = {3 - 4; 2 - (-2)} = {-1; 4}