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9 November, 19:41

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

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  1. 9 November, 19:42
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    "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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