12-01-2020
Mathematics

contestada

When a number has a positive and a negative root, the positive root is called?

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12-01-2020

Answer:

"principal root"

Step-by-step explanation:

The positive (even or odd) root of a positive real number is called its principal root.

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When an odd root is taken of a negative real number, the negative real root is the principal root. That is -2 is the principal cube root of -8.

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