2000年考研真题答案

去百度文库，查看完整内容>内容来自用户:若如初见000000考研数学助手您考研的忠实伴侣2000年全国硕士研究生入学统一考试理工数学二试题详解及评析一、填空题()（1）limarctanx−x=x→0ln1+2x3.【答】−1.6()【详解】limx→0arctanln1+x−x2x3=limx→0arctanx2x3−x=limx→011+x2−16x2()=lim−x2x→06x21+x2=−16（2）设函数y=y(x)由方程2xy=x+y所确定，则dy=.x=0【答】(ln2−1)dx【详解】方法一：根据微分形式不变性，在已知等式两边同时求微分，得2xy(ydx+xdy)ln2=dx+dy由原方程知，当x=0时，y=1，将其代入上式，得ln2dx−dx=dy,即有dy=(ln2−1)dx,x=0方法二：在方程2xy=x+y两边对x求导，得2xyln2⋅⎛⎜⎝y+xdydx⎞⎟⎠=1+dydx将x=0代入原方程得y=1，将x=0，y=1代入上式有：ln2(1+0)=1+dydx即有dy=ln2−1dx所以dy=(ln2−1)dx,x=0∫（3）+∞dx2(x+7)x−2=.【答】π3【详解】令x−2=t,则x=t2+2,dx=2tdt,于是∫∫()∫+∞dx+∞=2tdt=limb2dt()2x+7x−20t2+9tb→+∞0t2+9=limb→+∞⎛⎜⎝23arctant3b⎞0⎟⎠=π31（4）曲线y=(2x−1)ex的斜渐近线方程为.【答】y=

去百度文库，查看完整内容>内容来自用户:半冷不暖的色调2000年全国硕士研究生入学统一考试数学(一)试卷一、填空题(本题共5小题,每小题3分,满分15分.把答案填在题中横线上)(1)=_____________.(2)曲面在点的法线方程为_____________.(3)微分方程的通解为_____________.(4)已知方程组无解,则= _____________.(5)设两个相互独立的事件和都不发生的概率为,发生不发生的概率与发生不发生的概率相等,则=_____________.二、选择题(本题共5小题,每小题3分,满分15分.每小题给出的四个选项中,只有一个符合题目要求,把所选项前的字母填在题后的括号内)(1)设、是恒大于零的可导函数,且,则当时,有(A)(B)(C)(D)(2)设为在第一卦限中的部分,则有(A)(B)(C)(D)(3)设级数收敛,则必收敛的级数为(A)(B)(C)(D)(4)设维列向量组线性无关,则维列向量组线性无关的充分必要条件为(A)向量组可由向量组线性表示(B)向量组可由向量组线性表示(C)向量组与向量组等价(D)矩阵与矩阵等价(5)设二维随机变量服从二维正态分布,则随机变量与不相关的充分必要条件为(A)(B)(C)(D)三、(本题满分6分)求四、(本题满分5分)设,其中具有二阶连续偏导数具有二阶连续导数,求五、(本题满分6分)计算曲线积分,其中是以点为中心为半径的圆周取逆时针方向.六、(本题满分7分)设对于半空间内任意的光滑有向封闭曲面(A) -1③　(C)(D)(4)(A)(13)(C)设(C)数学15（A.（2）(A)设随机变量(A)(23) (

http://wenku..com/link?url=HBLaso7MRLwLshB7Y97QmSA1m-iZB5gDh44efmQUSYiSc0SkTcMeK5RGdz_YKY0o479El8jQWeEJwcO4vubNzEApGVgZMq-QPSje_8D20m7 这是15年的 其他年份的在右边栏找 这个一般大学旁边都有卖 近十年的 10快不到就能买到 现在做真题太早了 好好看全书吧网上买，淘宝，当当网都可以，

我刚才在时代学习社区下载了，好多历年2000-2010年考研数学一历年真题及解析免费下载额。我没有

发邮件有点费劲吧，但是我给你个网站，你自己下吧。上一下ishare,新浪网的。记得采纳啊 。上面的东西丰富哦 。我只有北外英语专业的。。。基础英语类，估计你也不大想要吧。。。

Text 3When a new movement in art attains a certain fashion, it is advisable to find out what its advocates are aiming at, for, however farfetched and unreasonable their principles may seem today, it is possible that in years to come they may be regarded as normal. With regard to Futurist poetry, however, the case is rather difficult, for whatever Futurist poetry may be -- even admitting that the theory on which it is based may be right -- it can hardly be classed as Literature.This, in brief, is what the Futurist says; for a century, past conditions of life have been conditionally speeding up, till now we live in a world of noise and violence and speed. Consequently, our feelings, thoughts and emotions have undergone a corresponding change. This speeding up of life, says the Futurist, requires a new form of expression. We must speed up our literature too, if we want to interpret modern stress. We must pour out a large stream of essential words, unhampered by stops, or qualifying adjectives, or finite verbs. Instead of describing sounds we must make up words that imitate them; we must use many sizes of type and different colored inks on the same page, and shorten or lengthen words at will.Certainly their descriptions of battles are confused. But it is a little upsetting to read in the explanatory notes that a certain line describes a fight between a Turkish and a Bulgarian officer on a bridge off which they both fall int0 the river -- and then to find that the line consists of the noise of their falling and the weights of the officers: “Pluff! Pluff! A hundred and eighty-five kilograms.”This, though it fulfills the laws and requirements of Futurist poetry, can hardly be classed as Literature. All the same, no thinking man can refuse to accept their first proposition: that a great change in our emotional life calls for a change of expression. The whole question is really this: have we essentially changed?59. This passage is mainly ________.[A] a survey of new approaches to art[B] a review of Futurist poetry[C] about merits of the Futurist movement[D] about laws and requirements of literature60. When a novel literary idea appears, people should try to ________.[A] determine its purposes[B] ignore its flaws[C] follow the new fashions[D] accept the principles61. Futurists claim that we must ________.[A] increase the proction of literature[B] use poetry to relieve modern stress[C] develop new modes of expression[D] avoid using adjectives and verbs62. The author believes that Futurist poetry is ________.[A] based on reasonable principles[B] new and acceptable to ordinary people[C] indicative of basic change in human nature[D] more of a transient phenomenon than literature答案:59. [B] 60. [A]61. [C] 62. [D]本回答被网友采纳

以前的和现在的思路有些不一样，题型相差不少，还是做近几年的真题比较好。祝考研成功！

直接上南大考研网邮购就行，真题答案很具体，我09年考南大经济法的时候买过http://blog.sina.com.cn/zyzvv

又不难，不知道是你真不会做，还是为了刷博客的人气...过程如下|：