Question

7) Racionalize o denominador da expressão!!

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Answer 1

Resposta:

$\frac{5}{\sqrt[7]{a^3} } =\\\\\frac{5}{\sqrt[7]{a^3} } \times \frac{\sqrt[7]{a^3} }{\sqrt[7]{a^3} } \times \frac{\sqrt[7]{a} }{\sqrt[7]{a} } =\\\\\frac{5 \times\sqrt[7]{a^3}\times \sqrt[7]{a} }{\sqrt[7]{a^3\times a^3\times a} } =\\\\\frac{5 \times\sqrt[7]{a^3 \times a} }{\sqrt[7]{a^7} } =\\\\\frac{5\sqrt[7]{a^4} }{a} =$