Mathematics, 13.03.2020 18:31 shiannethorn

Which pair of complex numbers has a real-number product?
(1 + 3)(61)
(1 + 3) (2-3)
(1 + 3) (1 - 31)
(1 + 3)(31)

Answers: 1

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Which pair of complex numbers has a real-number product?
(1 + 3)(61)
(1 + 3) (2-3)
...