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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 4

The reciprocal of 6/2 is 3/1.

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1
Recall that the reciprocal of a fraction \(\frac{a}{b}\) is obtained by swapping the numerator and denominator, resulting in \(\frac{b}{a}\).
Start with the given fraction \(\frac{6}{2}\).
Find the reciprocal by swapping the numerator and denominator: the reciprocal of \(\frac{6}{2}\) is \(\frac{2}{6}\).
Simplify the reciprocal fraction \(\frac{2}{6}\) by dividing numerator and denominator by their greatest common divisor, which is 2.
After simplification, the reciprocal becomes \(\frac{1}{3}\), which is not equal to \(\frac{3}{1}\), so the statement is incorrect.

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주요 개념

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

Reciprocal of a Number

The reciprocal of a number is obtained by swapping its numerator and denominator if it is a fraction. For example, the reciprocal of a/b is b/a. Multiplying a number by its reciprocal always results in 1.
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The Number e

Simplifying Fractions

Simplifying fractions involves reducing them to their lowest terms by dividing the numerator and denominator by their greatest common divisor. This makes it easier to compare or work with fractions.
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Radical Expressions with Fractions

Order of Operations and Fraction Interpretation

Understanding how to interpret expressions like 6/2 is crucial; it means 6 divided by 2, which equals 3. Recognizing this helps avoid errors when finding reciprocals or simplifying expressions.
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Performing Row Operations on Matrices