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12 September, 05:17

Explain why you cannot evaluate √-25 using real numbers.

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  1. 12 September, 07:58
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    We can not evaluate it with real numbers, because there is no real number that multiplies itself twice and gives - 25.

    The answer is an imaginary number.

    √-25 = 5i where i = √-1

    So it can only be computed using imaginary numbers.
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