Which of the following is equivalent to $$\sqrt[{4}] {{7}^{2}}$$?
Options
A
$$\sqrt[{4}] {14}$$
B
C
$${7}^{\frac {4} {2}}$$
D
$${7}^{\frac {2} {4}}$$
Answer & Analysis
Answer
D
Analysis
To determine which of the options is equivalent to $$\sqrt[{4}] {{7}^{2}}$$ (the fourth root of 72), let's break it down step by step using the fractional exponents rule.
The fractional exponent rule states that for any positive real number a and any rational number m/n (where m and n are integers and n is not equal to 0),
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