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What imaginary number is equivalent to the square root of negative 64?

Anonymous

∙ 15y ago

Updated: 10/19/2022

8i and -8i both satisfy this: (8i)² = (8²)(i²) = (64)(-1) = -64, and

(-8i)² = (-8²)(i²) = (64)(-1) = -64

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∙ 15y ago

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