Answer:
see explanation
Step-by-step explanation:
Using the rule of exponents./ radicals
[tex]a^{\frac{m}{n} }[/tex] = [tex]\sqrt[n]{a^{m} }[/tex]
Then
[tex]4^{\frac{1}{7} }[/tex] = [tex]\sqrt[7]{4}[/tex]
[tex]4^{\frac{7}{2} }[/tex] = [tex]\sqrt{4^{7} }[/tex]
[tex]7^{\frac{1}{4} }[/tex] = [tex]\sqrt[4]{7}[/tex]
[tex]7^{\frac{1}{2} }[/tex] = [tex]\sqrt{7}[/tex]
