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Mathematics, 25.10.2020 03:00 YungToeSuck

Which pair of complex numbers has a real-number product? O (1 + 2i(8i)
0 (1 + 2i) (2 - 5i)
O (1 + 2i)(1 – 2i)
O (1 + 2i)(4i)
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Which pair of complex numbers has a real-number product? O (1 + 2i(8i)
0 (1 + 2i) (2 - 5i)
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