m20x1.5

请那位高人帮忙解一道高等数学题f(x)=(1+X+X^2/2!+.+X^n/n!)*e^-x的极值这道题我有些莫名其妙,大家能给我解答吗?x后面的2和n代表的次方此题说明N可以趋于无穷大，貌似不能用泰勒展开式和麦克劳 日本play card去日本旅游,买了副play card,当时也没怎么看清楚,包装好的,请问这个是不是扑克牌啊?还是日本人玩的那种传统纸牌啊? which is more important play card or Do you like (drink) orange juice? Do you like (dDo you like (drink) orange juice? Do you like (drinking) orange juice? 这两个句子哪个（喝）才是正确的? Do you like orange?后加不加s?还有像I like orange.末尾加不加s 明天就要考试了,请诸位快回答! 请大家帮我取个英文名,我的名字中有个“恋”字,希望英文名的发音能和“恋”字差不多,要特别的,不常见 53.You can ____ some music here.A:listen B:see C:enjoy D:look 根据上下文和首字母提示完成.Look!This is a pictures of Nick's room.You can see some t___ in it. Can you see some 新英语四级分值匹配 play the parents card.突然想到这个表达...记得以前是在美剧里看到的.情景是父母对孩子say no,然后孩子就反驳道：“playing the parents card again?”..不确定表达完整与否,中文意思大概就是“又在给我 I did not love the play acting,staged the play for fear of sadness why not watch some English films?的同义句格式为：_____ _____watching some English films? DOWN BY SALLY GARDEN是什么意思RT~这个歌名的意思是... 叶芝在down by the sally garden 表达了什么呢 英语改病句,1.do they play games every day?yes,they are2.they have three watchs 为此新闻写一篇议论文医死童事故 屯门医院被指发生夺命医疗事故,自小患有哮喘及鼻敏感的13岁男童张睿霆,於2011年8月4日在屯门医院接受颈椎矫正手术,惟拔喉後呼吸困难,昏迷入住深切治疗 谁给我一篇高中的和时事有关的议论文什么话题无所谓,写得好不好也无所谓,只要是和时事有关的,以网络名人啊,90后啊有关的最好 求life is b boat 和down by the sally garden 的歌詞、謝謝大家 The Neglected Garden 歌曲的链接 In The Garden 歌词 What (be) they ____(do)?They ________(play)checkers. For the presidential race, i do not play gender card and i try to play a winning card. They attack翻译 疯狂英语中学版每月几号出版? Does he play chess?和Can he play chess?有什么区别 正方体的面积是24平方厘米,阴影部分的面积正好是正方形面积的1/8,是长方体面积的1/12,长方形的面积是 英语翻译1.绍兴被人们称作中国的威尼斯（refer to...as)2.使我感到高兴的是,父亲给我买了一台电脑作为生日礼物（to one's joy）3.Tony踢球时,他的脚受伤了（have/get sth.done)4.今天下午教室里竟然一 英语翻译Environmental organizations supposed her,but other people weren't on her side and they tried to stop her. 《晋书·李密传》的译文是什么?李密,字令伯,犍为武阳人也,一名虔.父早亡,母何氏醮.密时年数岁,感恋弥至,烝烝之性,遂以成疾.祖母刘氏,躬自抚养.密奉事以孝谨闻,刘氏有疾,则涕泣侧息,未尝 英语翻译1：It should be on a par with its advanced internationalcounterparts in terms of management,technology and the quality of services.2：With the promotion of the government and with the initiative oflocalities brought into full play,China 英语翻译请帮我翻译几个句子,中译英,1.一天一苹果,医生不找我.2.冬吃萝卜下吃姜,不用医生开处方.3.关于食物的俗语（谢谢支持） She'd like _____(play) chess with you.