daisyvences208 daisyvences208

30-10-2017
Mathematics

contestada

Find all the real fourth roots of 256.

4
-8 and 8
8
-4 and 4

Respuesta :

altavistard altavistard

30-10-2017

256 = 16^2. In turn, 16=4^2.

The 4th roots are {4, 4, -4 and -4}.

Check for yourself: Does 4^4= 256? does (-4)^4 = 256?

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