다음 연습문제에서 주어진 각 집합의 부분집합의 개수를 구하세요.
영어 원문 보기
For the following exercises, find the number of subsets in each given set.
원본 교재에 이 문제의 정답은 실려 있지 않습니다.
한 번 더 — 비슷한 문제 풀기Sundstrom, Mathematical Reasoning · 5.1절문제 은행 · 기초 수학 · 공통수학2 · 집합과 명제
이 단원의 모든 연습문제입니다. 소단원으로 좁혀 보려면 아래 꼬리표를 누르세요.
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459문제 · 1 / 23쪽
다음 연습문제에서 주어진 각 집합의 부분집합의 개수를 구하세요.
For the following exercises, find the number of subsets in each given set.
원본 교재에 이 문제의 정답은 실려 있지 않습니다.
한 번 더 — 비슷한 문제 풀기Sundstrom, Mathematical Reasoning · 5.1절다음 문제에서 주어진 각 집합의 부분집합의 개수를 구하세요.
서로 다른 숫자 5개, 서로 다른 문자 4개, 서로 다른 기호 3개를 원소로 갖는 집합
For the following exercises, find the number of subsets in each given set.
A set containing 5 distinct numbers, 4 distinct letters, and 3 distinct symbols
다음 문제에서 주어진 각 집합의 부분집합의 개수를 구하세요.
2부터 28까지의 짝수의 집합
For the following exercises, find the number of subsets in each given set.
The set of even numbers from 2 to 28
원본 교재에 이 문제의 정답은 실려 있지 않습니다.
한 번 더 — 비슷한 문제 풀기Sundstrom, Mathematical Reasoning · 5.1절다음 문제에서 주어진 각 집합의 부분집합의 개수를 구하세요.
1과 100 사이의 두 자리 수 중 숫자 0을 포함하는 수의 집합
For the following exercises, find the number of subsets in each given set.
The set of two-digit numbers between 1 and 100 containing the digit 0
집합 의 부분집합이 2,048개라고 합시다. 에 들어 있는 서로 다른 원소는 몇 개인지 구하세요.
Suppose a set has 2,048 subsets. How many distinct objects are contained in
원본 교재에 이 문제의 정답은 실려 있지 않습니다.
한 번 더 — 비슷한 문제 풀기Sundstrom, Mathematical Reasoning · 5.1절 · 5c번집합 의 부분집합은 모두 몇 개인지 구하세요.
How many subsets does the set have?
Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.
.
This is a statement.
Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.
.
This is not a statement.
Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.
There are integers and such that .
This is a statement.
Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.
Given a line and a point not on that line and in the same plane, there is a unique line in that plane through that does not intersect .
This is a statement.
Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.
.
This is not a statement.
Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.
For all real numbers and , .
This is a statement.
Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.
Does the equation have two real number solutions?
This is not a statement.
Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.
If is a right triangle with right angle at vertex , and if is the midpoint of the hypotenuse, then the line segment connecting vertex to is half the length of the hypotenuse.
This is a statement.
Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.
There do not exist three integers , , and such that .
This is a statement.
Use the techniques of exploration to investigate each of the following statements. Can you make a conjecture as to whether the statement is true or false? Can you determine whether it is true or false?
, for all real numbers and .
This proposition is false. A counterexample is and . For these values, and .
Use the techniques of exploration to investigate each of the following statements. Can you make a conjecture as to whether the statement is true or false? Can you determine whether it is true or false?
There are integers and such that .
This proposition is true, as we can see by using and . We could also use and . There are many other possible choices for and .
Use the techniques of exploration to investigate each of the following statements. Can you make a conjecture as to whether the statement is true or false? Can you determine whether it is true or false?
If is an even integer, then is an even integer.
This proposition appears to be true. Anytime we use an example where is an even integer, the number is an even integer. However, we cannot claim that this is true based on examples since we cannot list all of the examples where is an even integer.
Use the techniques of exploration to investigate each of the following statements. Can you make a conjecture as to whether the statement is true or false? Can you determine whether it is true or false?
If and are odd integers, then is an odd integer.
This proposition appears to be true. Anytime we use an example where and are both odd integers, the number is an odd integer. However, we cannot claim that this is true based on examples since we cannot list all of the examples where both and are odd integers.
“If is a positive integer, then is a prime number.” (Remember that a prime number is a positive integer greater than 1 whose only positive factors are 1 and itself.) To explore whether or not this statement is true, try using (and recording your results) for , , , , , and . Then record the results for at least four other values of . Does this conditional statement appear to be true?
The number will be a prime number for all examples of that are less than 41. However, when , we get
So in the case where , the hypothesis is true (41 is a positive integer) and the conclusion is false . Therefore, 41 is a counterexample that shows the conditional statement is false. There are other counterexamples (such as , , and ), but only one counterexample is needed to prove that the statement is false.