1、 (1) 苏联打阿富汗 0 .
(2) 1/(1+x^2) .
(3) -cotx 雀儿山公园.
(4). 泰勒展开式（书上有。。。） .
(5) 26/3 .
2、
(6) The right proposition in the following propositions is ____A____.古筝自学
A. Ifexists anddoes not exist thendoes not exist.
B. If,do both not exist thendoes not exist.
C. Ifexists anddoes not exist thendoes not exist.
D. Ifexists anddoes not exist thendoes not exist.
(7) The right proposition in the following propositions is __A______.
A. Ifthenexists.
B. If thendoes not exist.
C. Ifdoes not exist then.谈恋爱好累
D. Ifdoes not exist then the curedoes not have tangent at.
(8) The right statement in the following statements is __D______.
A. B.
C. D.
(9) For continuous function, the erroneous expression in the following expressions is __C____.
瑟是什么乐器
A. B.
C. D.
(10) The right proposition in the following propositions is ____D____.
A. Ifis discontinuous onthenis unbounded on.
B. Ifis unbounded onthenis discontinuous on.
C. Ifis bounded onthenis continuous on.
D. Ifhas absolute extreme values onthen微软校园招聘is continuous on.
3、Evaluate 1/2
4．Find andif. 隐函数求导。注意右边第一项求导为2*x*y(x) (y(x)就是y)
答：当月球运行到地球和太阳的中间，如果月球挡住了太阳射向地球的光，便发生日食。5、 Find.
arctanx/x^2-arctanx/(1+x^2)
在铁制品表面涂上油漆或菜油，用完铁制品后擦干放在干燥的地方等。=-(arctanx)/x+∫ dx/[x(1+x^2)]
=-(arctanx)/x+∫(-x) dx/(1+x^2)+∫ dx/x
=-(arctanx)/x-(1/2)∫d(1+x^2)/(1+x^2)+∫ dx/x
=-(arctanx)/x-(1/2)ln(1+x^2)+ln|x|+C
5、垃圾的回收利用有哪些好处？
6、 Given that.
12、太阳是太阳系里唯一发光的恒星，直径是1400000千米。(1) Find the intervals on whichis increasing or decreasing. F’(x)=0，x=0，0为分界点
22、绿色植物的一些细胞能进行光合作用，制造养料，它们好像是一个个微小的工厂。(2) Find the local maximum and minimum values of 0、1（逐渐接近但不能等于）
8、对生活垃圾进行分类和分装，这是我们每个公民应尽的义务。(3)Find the intervals of concavity and the inflection points. 苹果电脑如何关机F’’(x)=0,x=根号2-1或-根号2-1，讨论
(4) Find the asymptote lines of the cure y=1
10、日食：当月球运动到太阳和地球中间，如果三者正好处在一条直线上时，月球就会挡住太阳射向地球的光，在地球上处于影子中的人，只能看到太阳的一部分或全部看不到，于是就发生了日食。日食时，太阳被遮住的部分总是从西边开始的。7、Let R be the region bounded by the curve, and the line and.
(a)Evaluate the area of the region R. 3/2-In2
(b)Find the volume of the solid generated by revolving the R about the y-axis. 8/3π
一段动词
10、由于煤、石油等化石燃料消耗的急剧增加，产生了大量的二氧化碳，使空气中的二氧化碳含量不断增加，导致全球气候变暖、土壤沙漠化、大陆和两极冰川融化，给全球环境造成了巨大的压力。8、 Determine the production level that will maximize the profit for a company with cost and demand functions
and. 400
6、化学变化伴随的现象有改变颜色、发光发热、产生气体、产生沉淀物。9、State the cond derivative test theorem testing maximum and prove it.书上有
10、Show that the equationhas at most one root in the interval
20、在水中生活着许我微生物，常见的有草履虫、变形虫、喇叭虫、眼虫、团藻等。.
设有2根，f(x)在-2到2上连续,f’(x)=0得出2根为-根号5和根号5，即在-2到2上单调。所以最多一根
