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19 July, 12:42

The expression 10 / (3 + i) is equivalent to:

1) 3 - i

2) (15 + 5i) / 4

3) 3 + i

4) 5/4

+5
Answers (1)
  1. 19 July, 14:18
    0
    The answer is 2) (15 + 5i) / 4

    proof

    10 / (3 + i) = 10 (3 - i) / (3 + i) (3 - i) = 5 (3 - i) / 4
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