Perform the operation and write the result in standard form. 1. (5 + i) + (2 +
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1. (5 + i) + (2 + 3i)
2. (13 − 2i) + (−5 + 6i)
3. (9 − i) − (8 − i)
4. (3 + 2i) − (6 + 13i)
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