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请教一道数学题，拜托各位学霸大神啦
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第七题，最好有详细的步骤。谢谢
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上一个发这么不清晰的图的人走的不是很安详。。。
:手机像素不太好，不好意思，我又新发了一下你看看
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那我从发一个，这个怎么样
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能用空间向量做么，那样比较快
:我们还没学到那，但也应该可以，谢谢
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推荐小猿搜题那里面有答案。
:谢谢，主要是小猿搜题要是我哪个步骤看不明白也问不了啊！
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。。。。。那你多看看视频。第一问不会的话是基础概念没有理解。第二问也就是个数学运算而已没有什么难度。
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一道高一的数学题，拜托各位帮忙一下！收藏
若f(x)=x^2/*(1+2*x^2-2x),求f(1/n)+f(2/n)+f(3/n)+···+f(n-1/n)+f(1).
(⊙o⊙)…，
拜托各位了，&
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这种题,肯定是倒写相加的
看看f(k/n)+&f(&(n-k)/n&)是不是常数,不是的话就不用算了
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本贴相关题目
Outsourcing is the practice of obtaining from an independent supplier a product or service that a company has previously provided for itself. Vernon, Inc., a small manufacturing company that has in recent years experienced a decline in its profits, plans to boost its profits by outsourcing those parts of its business that independent suppliers can provide at lower cost than Vernon can itself.
Which of the following, if true, most strongly supports the prediction that Vernon's plan will achieve its goal?
AAmong the parts of its business that Vernon does not plan to outsource are some that require standards of accuracy too high for most independent suppliers to provide at lower cost than Vernon can.&&BVernon itself acts as an independent supplier of specialized hardware items to certain manufacturers that formerly made those items themselves.&&CRelatively few manufacturers that start as independent suppliers have been able to expand their business and become direct competitors of the companies they once supplied.&&DVernon plans to select the independent suppliers it will use on the basis of submitted bids.&&EAttending to certain tasks that Vernon performs relatively inefficiently has taken up much of the time and effort of top managers whose time would have been better spent attending to Vernon's core business.&&
正确答案: E
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Outsourcing is the practice of obtaining from an independent supplier a product or service that a company has previously provided for itself. &Vernon, Inc., a small manufacturing company that has in recent years experienced a decline in its profits, plans to boost its profits by outsourcing those parts of its business that independent suppliers can provide at lower cost than Vernon can itself.Which of the following, if true, most strongly supports the prediction that Vernon's plan will achieve its goal?(A) Among the parts of its business that Vernon does not plan to outsource are some that require standards of accuracy too high for most independent suppliers to provide at lower cost than Vernon can.(B) Vernon itself acts as an independent supplier of specialized hardware items to certain manufacturers that formerly made those items themselves.(C) Relatively few manufacturers that start as independent suppliers have been able to expand their business and become direct competitors of the companies they once supplied.(D) Vernon plans to select the independent suppliers it will use on the basis of submitted bids.(E) Attending to certain tasks that Vernon performs relatively inefficiently has taken up much of the time and effort of top managers whose time would have been better spent attending to Vernon's core business.我徘徊在C和E & &C和E好像都对 啊 & & &纠结啊
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c。你所说的E 说的 CORE OR NON CORE TASK,和outsource product无关。
在线时间 小时
可是答案是C啊
在线时间 小时
stimulus的逻辑结构是outsourcing可降低成本，一公司为了降低成本（目的），把一些业务外包出去先看C，C是通过消除削弱的可能达到支持的作用，承担外包的公司不会与Vernon竞争，消除了不利的影响因素再看EE只是说outsourcing可以节约时间和让manager做core business，并没有对降低成本的起到任何影响（如果说让manager做core business可以降低成本，这就有二次延伸，不如C直接）
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我看错了 & 答案是E 。。。
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坚持是CE的time和core business不能确定公司的profit就一定增加但C如果新的竞争者参与会使得profit减少
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I think the answer is EThe company's purpose is to boost its profit by decrease its costC is irrelevantWe all know that in the business world,there is no forever friend.Even though the outsourcing-company will become a director competitor,temporary coorperation is deserve.)The plan is just focus on company's RECENT situation.E is correct:It points out that if the company implement the plan,the company can decrease OPPORTUNITY COST.
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好吧~~~其实这题好像是一道削弱题的改编~~~我觉得C和E都有延伸的意思，都没有直接说道cost这个核心但DENGTS同学指出opportunity cost作为一个本科学经济的同学，我还是比较认可的~~~如果stimulus里探讨的不是会计意义上的成本，而是经济成本那E的确是公司的opportunity cost~~~饿总之我觉得题出得不好~~~~欢迎拍砖
在线时间 小时
For answer C, it describes what happened to those manufacturers which start as independent suppliers first, NOT the independent supplier itself. And the stimuli has never mentioned that independent supplier that the company is looking for will become a manufacturer in future. This is considered as a shell game answer. It secretly changed the subject of the discussion to a similar but totally different one to confuse you.As for answer E, it can be logically assumed that when mgmt pays more attention to the core business, the profits generated from it could be increased and therefore it can boost the overall profit as well.
在线时间 小时
you need an answer choice that shows that OUTSOURCING WILL BE MORE PROFITABLE THAN NOT OUTSOURCING. the other four answer choices are completely irrelevant to the issue, which is the effect of outsourcing on profit.. choice (e),E is best- It shows a precise advantage of implementing the plan! therefore, even though (e) requires additional assumptions, it's still the choice that &most strongly supports& the argument - because it's the only choice that even could support the argument.
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