Question
DISCUSS MATHEMATICAL THINKING Let x be a nonnegative real number. Determine whether the statement is always, sometimes, or ne true. x^1/3=sqrt [3](x) Always Sometimes Never Justify your answer.
Solution
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Quentin
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Answer
### Always
Explanation
## Step 1: Definition of Fractional Exponents### The expression
is defined as the
th root of
, denoted by
, when
is a positive integer. This holds true for non-negative real numbers
.## Step 2: Applying the Definition to the Given Problem### In our case, we have
, which, according to the definition, is equivalent to
.## Step 3: Considering the Domain### The statement holds true for non-negative real numbers. For negative real numbers, the cube root is defined, so the statement also holds true for negative real numbers.