Mathematics, 12.07.2019 08:30 cocaineal

Simplify 1). (-1++6i) 2). (1-5i)(1-7i) 3). -9-3i/-i 4). -5-3i/1-9i

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Simplify 1). (-1++6i) 2). (1-5i)(1-7i) 3). -9-3i/-i 4). -5-3i/1-9i...

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