slarissa slarissa

27-04-2014
Mathematics

contestada

Simplify 81^1/2
Please simplify and show steps

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Dannymal Dannymal

27-04-2014

81^1/2

1. 81^1 = 81 / 2 = 40 and 1/2

or 2. 81^ 1/2 = sqrt of 81

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Аноним Аноним

27-04-2014

[tex]a^\frac{n}{m}=\sqrt[m]{a^n}\\\\\\81^\frac{1}{2}=\sqrt{81}=9\\\\\\81^\frac{1}{2}=(9^2)^\frac{1}{2}=9^{2\cdot\frac{1}{2}}=9[/tex]

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