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11-12-2018
Mathematics

contestada

-3√-20 written as a complex number

Respuesta :

17-12-2018

Answer: 3√-20 = 3√20√-1 = (3√20)i

Step-by-step explanation:

√-20 can be written √20√-1 since

(√20√-1)^2 is indeed -20.

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