Rewrite sqrt [2](7^3) with a rational exponent. 7^(2)/(3) 2^(3)/(7) 7^(3)/(2) C 3^(7)/(2)

To rewrite $\sqrt [2]{7^{3}}$ with a rational exponent, we need to express the square root as a fractional exponent.<br /><br />The square root of a number can be written as the number raised to the power of $\frac{1}{2}$. So, $\sqrt [2]{7^{3}}$ can be written as $7^{\frac{3}{$.<br /><br />Therefore, the correct answer is $7^{\frac{3}{2}}$.