首页
登录
职称英语
[img]ct_2image006[/img]If the value of the expression above is to be halved by
[img]ct_2image006[/img]If the value of the expression above is to be halved by
游客
2025-02-24
0
管理
问题
If the value of the expression above is to be halved by doubling exactly one of the five numbers a, b, c, d, or e, which should be doubled?
选项
A、a
B、b
C、c
D、d
E、e
答案
D
解析
若要通过加倍a,b,c,d和e这五个数中某一个数而使上面表达式的值减半,问应当加倍哪一个数?
解:本题的正确答案是(D)。这道题中的表达式是个繁分式,要使分式的值减半,要么使分母的值加倍,要么使分子的值减半。而本题的要求是通过加倍某个数的方法使整个分式的值减半,所以就要从分式的分母d/e入手。要使d/e的值加倍,只有使d的值加倍。
转载请注明原文地址:https://tihaiku.com/zcyy/3971249.html
相关试题推荐
Theexpression(x+4)(2x-3)equivalenttowhichofthefollowing?I.2x(x
Ifx=6y,thenwhichofthefollowingexpressionsisamultipleofx?Selectall
Findanalgebraicexpressiontorepresenteachofthefollowing.(a)Thesquareo
Findanalgebraicexpressiontorepresenteachofthefollowing.(a)Thesquareo
Simplifyeachofthefollowingalgebraicexpressions.(a)3x2-6+x+11-x2+
Simplifyeachofthefollowingalgebraicexpressions.(a)3x2-6+x+11-x2+
[img]2014m9x/ct_egreqm_egreqjs_0041_20148[/img]Theexpressionsinthetableabo
Simplifyeachofthefollowingalgebraicexpressions.(a)3x2-6+x+11-x2+5x(
Whichofthefollowinginequalitiesisanalgebraicexpressionfortheshadedpa
A、Emotionalexpressionvariesbetweenindividualstoasignificantlygreaterext
随机试题
TheUnitedKingdomisa______monarchy.A、DemocraticB、RepublicC、Constitutional
WelcometovisitourcompanyandIamverygladtohavetheopportunitytoi
[originaltext]Thecostisgoingupforjustabouteverything,andcollegetu
炙甘草汤的功用是A、益气健脾,养阴润肺 B、健脾益气,补肺宁嗽 C、益气滋阴
A.凤眼圈B.乌药珠C.风化D.乌金衣E.乌鸦头草乌块根干燥后枯瘦有棱,一端渐尖
属于行政办公类的城市公共设施是( )。A.保险公司 B.出版社 C.信托投
根据《火灾自动报警系统施工及验收规范》GB50166—2019的规定,下列属于
( )贯穿于绩效管理整个过程,能帮助实现绩效管理效用最大化。A.绩效计划 B
初步可行性研究也称为()。A.地区研究 B.预可行性研究 C.投资机遇研究
下列不属于建设工程必须招标的规模标准的是()。A.施工单项合同估算价在人民币40
最新回复
(
0
)