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4문제 · 1 / 1쪽
Recall that a quadrilateral is a four-sided polygon. Let represent the following true conditional statement:
If a quadrilateral is a square, then it is a rectangle.
Write this conditional statement in English using
the phrase “is necessary for”
Being a rectangle is necessary for a quadrilateral to be a square.
Recall that a quadrilateral is a four-sided polygon. Let represent the following true conditional statement:
If a quadrilateral is a square, then it is a rectangle.
Write this conditional statement in English using
the phrase “is sufficient for”
Being a square is sufficient for a quadrilateral to be a rectangle.
Let stand for “the integer is even,” and let stand for “ is even.” Express the conditional statement in English using
The phrase “is necessary for”
For the integer to be even, it is necessary that be even.
Let stand for “the integer is even,” and let stand for “ is even.” Express the conditional statement in English using
The phrase “is sufficient for”
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한 번 더 — 비슷한 문제 풀기Sundstrom, Mathematical Reasoning · 2.1절