kcooppom5Demi kcooppom5Demi

16-07-2016
Mathematics

contestada

explain why you cannot evaluate √−25 using real numbers.

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olemakpadu olemakpadu

16-07-2016

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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