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
13
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
Moreover,insofarasanyinterpretationofitsauthorcanbemadefromthe
Womensawlittleadvancementincorporateboardroomsandcompensationin201
[originaltext]Theexpression"athirstforknowledge"maysoonhaveanewme
学习间接经验反映了教学过程中认识对象的特点是()A.间接性 B.概括性 C
女,3岁,颈部肿物约1cm,稍高起于皮肤,圆形,边界不甚清楚,皮表正常。肿块呈青
无抗四环素的细菌培养感染了来自抗四环素细菌溶菌液的病毒。原培养的细菌的子代大多获
下列关于刑事诉讼法基本原则的表述,不正确的有:A.在刑事诉讼活动中,公安机关的活
下列哪种联合用药是通过一种药物对另一种药物的保护作用而增加疗效A.亚胺培南制剂中
下列哪些属于报检入境废物时应提供的单证()。 A.装运前检验证书B.进口废
张某等3人共同出资设立一个普通合伙企业,实缴出资比例为1:2:3。张某在执
最新回复
(
0
)