1. **Problem Statement:** Translate the given expressions between exponential and radical forms.
2. **Key Formula:** The relationship between radicals and rational exponents is:
$$\sqrt[n]{a} = a^{\frac{1}{n}}$$
and conversely,
$$a^{\frac{m}{n}} = \left(\sqrt[n]{a}\right)^m$$
3. **Part A: Convert to Radical Form**
- Expression 1: $5^{\frac{1}{6}}$
Using the formula, this is the sixth root of 5:
$$5^{\frac{1}{6}} = \sqrt[6]{5}$$
- Expression 2: $-12(xyz^9)^{\frac{1}{8}}$
Rewrite the exponent as an eighth root:
$$-12 \times \sqrt[8]{xyz^9}$$
Since $z^9$ is inside the root, it remains as is.
4. **Part B: Convert to Exponential Form**
- Expression 3: $\sqrt[3]{2}$
This is the cube root of 2, which equals:
$$2^{\frac{1}{3}}$$
- Expression 4: $\sqrt[4]{\frac{5}{y^3}}$
Rewrite the fourth root as an exponent:
$$\left(\frac{5}{y^3}\right)^{\frac{1}{4}} = \frac{5^{\frac{1}{4}}}{y^{\frac{3}{4}}}$$
5. **Summary:**
- $5^{\frac{1}{6}} = \sqrt[6]{5}$
- $-12(xyz^9)^{\frac{1}{8}} = -12 \sqrt[8]{xyz^9}$
- $\sqrt[3]{2} = 2^{\frac{1}{3}}$
- $\sqrt[4]{\frac{5}{y^3}} = \frac{5^{\frac{1}{4}}}{y^{\frac{3}{4}}}$
This completes the conversions between radical and exponential forms.
Rational Exponents
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