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
12
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
Onthenightoftheplay,Albertwasalreadymade-upand【B1】______inhispolice
[originaltext]Accordingtoofficialstatistics,Thailand’sannualroad-deat
ThelargeAmericanenergyservicecompany,Enron,failedtwoyearsago.Ith
Foreachblankinthefollowingpassage,
A.1.275~1.285 B.1.286~1.300 C.1.350~1.
回弹弯沉值可以用于()。A竣工验收 B交工验收 C新建路面结构设计 D旧路
下列不属于建筑立面图图示的内容的是( )。A.散水构造做法 B.外墙各主要部位
冷凝集试验可协助诊断的疾病是A.梅毒B.肠热症C.猩红热D.非典型性肺炎E.斑疹
该过梁下的局部承压承载力最接近于()kN。A..49.2
调配处方时,对需要特殊条件保存(如2~10℃)的药品应该A.加贴标签 B.分别
最新回复
(
0
)