명제와 조건 연습문제 — Sundstrom, Mathematical Reasoning · 1.1절 · 9c번

Sundstrom, Mathematical Reasoning · 1.1절 · 9c번영어 원문

Using what you learned in this section, answer the following.

Is the set of nonzero rational numbers closed under division?

정답·풀이 보기 (영어 원문)

The set of nonzero rational numbers is closed under division.

한 번 더 — 비슷한 문제Sundstrom, Mathematical Reasoning · 1.1절 · 2b번영어 원문

Identify the hypothesis and the conclusion for each of the following conditional statements.

If $a$ is an irrational number and $b$ is an irrational number, then $a \cdot b$ is an irrational number.

다 풀었으면 정답 확인

Hypothesis: $a$ is an irrational number and $b$ is an irrational number.

Conclusion: $a \cdot b$ is an irrational number.

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