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Mathematics, 27.06.2019 08:30 timothytomas2046

What is the sign of − 4 a b −4ab when a > 0 a> 0 and b < 0 b< 0?

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What is the sign of − 4 a b −4ab when a > 0 a> 0 and b < 0 b< 0?...
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