
순열과 조합 문제 풀이 Test
Interactive Video
•
Mathematics
•
10th Grade
•
Hard
황진명 교사
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
순열의 정의로 옳은 것은?
서로 다른 n개 중 r개를 순서를 고려하지 않고 뽑는 경우의 수
서로 다른 n개 중 r개를 골라 순서를 고려하여 나열한 경우의 수
서로 다른 n개 중 중복을 허용하여 r개를 뽑는 경우의 수
서로 다른 n개 중 r개를 순서를 고려하여 뽑기만 하는 경우의 수
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6개의 문자 a, b, c, d, e, f 중에서 서로 다른 4개를 택하여 일렬로 나열하는 경우의 수는?
6 × 5 × 4 × 3
6 × 5 × 4 × 3 × 2 × 1
6 × 5 × 4
6 × 4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
순열 nPr을 팩토리얼(factorial)을 이용하여 나타낸 식으로 옳은 것은?
n! / r!
n! / (n-r)!
(n-r)! / n!
r! / (n-r)!
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
nP0의 값은 무엇인가?
0
1
n
n!
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
서로 다른 7개의 문자 중에서 3개를 택하여 일렬로 나열하는 경우의 수는?
21
35
210
840
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