Posted by Melissa on Friday, July 24, 2009 at 1:51pm.
Simplify each radical expression. Assume all variables
represent positive real numbers
ãa^10

algebra  Melissa, Friday, July 24, 2009 at 2:00pm
again when I post it does not read right.
it is sqrt a^10

algebra  MathMate, Saturday, July 25, 2009 at 9:44am
One of the rule of exponents tells us that the square root of a number a raised to an exponent n is the same number raised to an exponent of n/2.
Thus the squareroot of a² is a^{2/2} = a¹
In the particular example given,
sqrt(a^{10})
= a^{10/2}
= a^{5}
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