首页
登录
职称英语
[img]2014m9x/ct_egreqm_egreqbj_0083_20148[/img] [br] CIn this question, you are
[img]2014m9x/ct_egreqm_egreqbj_0083_20148[/img] [br] CIn this question, you are
游客
2024-01-12
36
管理
问题
[br]
选项
答案
C
解析
In this question, you are given that set S consists of 5 objects and are asked to compare the number of subsets of set S that consist of 1 object with the number of subsets of set S that consist of 4 objects. Recall that a set R is a subset of set S if all of the members of R are also members of S.
Note that if you select 1 object from set S, there are 4 objects in S that you have not selected; that is to say, each subset of S with 1 object corresponds to a subset of S with 4 objects. Therefore, the number of subsets of S with 1 object is equal to the number of subsets of S with 4 objects. Since Quantity A is equal to Quantity B, the correct answer is Choice C.
Another approach to solving this problem is to consider a particular set of 5 objects and determine all of the subsets consisting of 1 object and all of the subsets consisting of 4 objects. For example, let S = {a, b, c, d, e}. There are 5 subsets of S consisting of 1 object: {a}, {b}, {c}, {d}, and {e}; there are 5 subsets of S consisting of 4 objects: {a, b, c, d}, {a, b, c, e}, {a, b, d, e}, {a, c, d, e}, and {b, c, d, e}.
Clearly, the particular 5 objects in S do not change the fact that the number of subsets of S consisting of 1 object is equal to the number of subsets of S consisting of 4 objects. The correct answer is Choice C.
转载请注明原文地址:https://tihaiku.com/zcyy/3355729.html
相关试题推荐
Thatstudent______hishandeverytimeIaskedaquestion.A、madeupB、putupC、r
______,Ishouldaskthemsomequestions.A、ShouldtheycometousB、Iftheycome
Hewas______enoughtounderstandmyquestionsfromthegesturesImade.A、intelli
______studentwithalittlecommonsenseshouldbeabletoanswerthequestion.
Amanisbeingquestionedinrelationtothe______murder.A、advisedB、attended
______youwerebusy,Iwouldn’thavebotheredyouwithmyquestions.A、IfIreal
Thisquestionistoohard;itis______mycomprehension.A、belowB、beyondC、over
Whilebeingquestionedonthecourt,themandenied______theoldlady’snecklac
Hewas______enoughtounderstandmyquestionsfromthegesturesImade.A、intelli
Tomakeupanobjectivetest,theteacherwritesaseriesofquestions,______ha
随机试题
Theshopassistantguaranteedthattheantiqueis_______,notaverygoodfake.
Newresearchfindsthatnearly5,200kidsaretreatedinanemergencydepart
ShouldMedicalSchoolsTurntoThree-yearPrograms?[A]ForTravisHill,
政府应该提供资助给难民。Thegovernmentshouldprovidefinancialsupportforpeoplewhoares
管理的重要组成部分,贯穿于计划实施的全过程,指的是A.教育 B.评价 C.知
如果X是服从正态分布的随机变量,则exp(X)服从( )。A.正态分布 B.
血浆清除率是指肾脏在单位时间内A.将血浆中某物质完全清除出去的血浆毫升数 B.
相比那些不踢足球的大学生,经常踢足球的大学生的身体普遍健康些。由此可见,足球运动
下列关于国家环境保护标准与地方环境标准的关系,说法正确的是( )。A.执行上,
在建筑结构中,从基础到上部结构全部断开的变形缝是()。A.伸缩缝 B.沉
最新回复
(
0
)