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3 May, 07:38

There are no real nth roots of a number b. What can you conclude about the index n and the number b?

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  1. 3 May, 07:46
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    The number b is negative and the index n is even.

    Step-by-step explanation:

    For example there are no real roots of √-2 (where n = 2) or ⁴√-4.

    There are real roots of negative numbers, if n is odd.

    For example ∛-8 which is - 2.
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