Which of the following is equivalent to [tex]\sqrt[5]{13^3}[/tex]?

A. [tex]13^2[/tex]
B. [tex]13^{15}[/tex]
C. [tex]13^{\frac{5}{3}}[/tex]
D. [tex]13^{\frac{3}{5}}[/tex]



Answer :

To solve the problem of finding an expression equivalent to \(\sqrt[5]{13^3}\), we can use properties of exponents and roots.

1. Start with the expression \(\sqrt[5]{13^3}\).
2. Recognize that a fifth root can be rewritten as an exponent with a denominator of 5. Thus, \(\sqrt[5]{x} = x^{1/5}\).
3. Apply this property to our expression:
[tex]\[ \sqrt[5]{13^3} = (13^3)^{1/5} \][/tex]
4. When raising a power to another power, we multiply the exponents. So:
[tex]\[ (13^3)^{1/5} = 13^{3 \cdot \frac{1}{5}} \][/tex]
5. Simplify the exponent:
[tex]\[ 3 \cdot \frac{1}{5} = \frac{3}{5} \][/tex]
6. Combine this back into the expression with the base 13:
[tex]\[ 13^{\frac{3}{5}} \][/tex]

Therefore, \(\sqrt[5]{13^3} = 13^{\frac{3}{5}}\).

The correct equivalent expression is:
[tex]\[ \boxed{13^{\frac{3}{5}}} \][/tex]

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