Algebra Flashcards: Rational And Irrational Number Operations

Study Rational And Irrational Number Operations in Algebra with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What special case makes $ri$ rational when $r$ is rational and $i$ is irrational?

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ANSWER

If $r=0$ , then $ri=0$ is rational. Zero times any number equals zero, which is rational.

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Algebra: Rational & Irrational Numbers

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What this deck covers

This deck focuses on Rational And Irrational Number Operations, giving you a quick way to review the definitions, rules, and examples that matter most for Algebra.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set

Prove or disprove the claim: "If

r

is a nonzero rational number and

i

is an irrational number, then

r\times i

is irrational." Which reasoning is correct?

Choose an answer

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