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4 October, 02:55

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

1) 3 - i

2) (15 + 5i) / 4

3) 3 + i

4) 5/4

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Answers (1)
  1. 4 October, 05:04
    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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