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
33
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://www.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
NMASBE(NewMexicoAssociationofSm
Whatistheman’spurposeofbeinghere?[br][originaltext]W:Goodevening,si
Iwasveryinterestedin______shetoldme.A、allthatB、allwhichC、allwhatD、
CollegeLifeAmericancollegeanduniversitystudentswho【T1】______away
A.3 B.e C.1 D.∞
肾小管酸中毒临床类型以下哪个是错误的A.远端肾小管酸中毒(RTA-Ⅰ) B.近
治疗虚人感冒宜A.辛温解表 B.解表达邪 C.解表化湿 D.扶正解
A.患病率 B.生存率 C.发病率 D.婴儿死亡率 E.治愈率评价远期疗
有效湿度是指( )。A.受试者所感受到的不同热感觉的温度 B.人在不同温度、
在邮政服务质量指标体系中,通信质量指标又可分为时限指标、安全质量指标和()。A.
最新回复
(
0
)