SIMPLIFYING ![\sqrt[k]{ a^{k}}](https://mymathangels.com/wp-content/ql-cache/quicklatex.com-8ec6bf9ed8229249ac3d026a2f5135a3_l3.png "Rendered by QuickLaTeX.com")
For any real number a:
a) = 
when k is an even natural number. We use absolute
value when k is even unless a is nonnegative.
b) = a when k is an odd natural number greater than 1. We do
not use absolute value when k is odd.
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