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Ch. R - Review of Basic Concepts
Lial - College Algebra 13th Edition
Lial13th EditionCollege AlgebraISBN: 9780136881063당신이 사용하는 게 아니라요?교과서 변경
1장, 문제 63

Use the rules for radicals to perform the indicated operations. Assume all variable expressions represent positive real numbers. mn44\(\sqrt\)[4]{\(\frac{m}{n^4}\)}

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1
Identify the given expression: the fourth root of \( \frac{m}{n^4} \), which can be written as \( \sqrt[4]{\frac{m}{n^4}} \).
Recall the property of radicals that \( \sqrt[4]{\frac{a}{b}} = \frac{\sqrt[4]{a}}{\sqrt[4]{b}} \). Apply this to separate the numerator and denominator inside the radical: \( \frac{\sqrt[4]{m}}{\sqrt[4]{n^4}} \).
Use the rule that \( \sqrt[4]{n^4} = n^{\frac{4}{4}} = n^1 = n \), since the fourth root and the fourth power cancel each other out.
Rewrite the expression as \( \frac{\sqrt[4]{m}}{n} \).
This is the simplified form using the rules for radicals, assuming all variables represent positive real numbers.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Radical Expressions and Their Properties

Radical expressions involve roots such as square roots, cube roots, and fourth roots. Understanding how to simplify and manipulate these expressions is essential, including recognizing that the nth root of a quotient equals the quotient of the nth roots.
추천 영상:
05:45
Radical Expressions with Fractions

Rules for Operations with Radicals

Operations with radicals follow specific rules, such as the product rule (√a * √b = √(ab)) and the quotient rule (√(a/b) = √a / √b). Applying these rules allows simplification of expressions involving radicals, especially when variables and exponents are involved.
추천 영상:
05:45
Radical Expressions with Fractions

Exponents and Their Relationship to Radicals

Radicals can be expressed as fractional exponents, where the nth root of a variable is the variable raised to the 1/n power. This connection helps in simplifying and performing operations on radical expressions by converting between radical and exponential forms.
추천 영상:
04:06
Rational Exponents