电大专科《微积分初步》期末复习考试题资料参考

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1、电大微积分初步期末复习题资料参考小抄1、填空题(1)函数的定义域是 答案:且.(2)函数的定义域是答案:(3)函数,则 答案:(4)若函数在处连续,则 答案:(5)函数,则 答案:(6)函数的间断点是 答案: (7) 答案:1(8)若,则 答案:(9)曲线在点的切斜率是答案: (10)曲线在点的切线方程是 答案: (11)已知,则=答案:=27(12)已知,则=答案:,=(13)若,则 答案:(14)函数的单调增加区间是 答案:(15)函数在区间内单调增加,则应满足 答案:(16)若的一个原函数为,则 .答案:(17)若,则答案: (18)若答案:(19)答案:(20) 答案:(21)若,则答

2、案:(22)若,则答案:(23) 答案:(24) .答案:0(25)= 答案:(26)已知曲线在任意点处切线的斜率为,且曲线过,则该曲线的方程是 .答案: (27)由定积分的几何意义知,= .答案: (28)微分方程的特解为 . 答案: (29)微分方程的通解为 .答案:(30)微分方程的阶数为 答案:42单项选择题(1)设函数,则该函数是()A奇函数 B偶函数C非奇非偶函数 D既奇又偶函数答案:B(2)下列函数中为奇函数是()A B C D答案:C(3)函数的定义域为()A B C且 D且答案:D(4)设,则( )A B C D答案:C (5)当( )时,函数在处连续.A0 B1 C D 答

3、案:D(6)当( )时,函数,在处连续.A0 B1 C D 答案:B(7)函数的间断点是( )A B C D无间断点答案:A(8)若,则=( ) A. 2 B. 1 C. -1 D. -2答案:C(9)设,则( ) A B C D答案:B(10)设是可微函数,则( ) A B C D答案:D (11)若,其中是常数,则( ) A B C D答案:C(1)函数在区间是( )A单调增加 B单调减少C先增后减 D先减后增答案:D(12)满足方程的点一定是函数的( ).A极值点B最值点 C驻点D 间断点答案:C(13)下列结论中( )不正确 A在处连续,则一定在处可微. B在处不连续,则一定在处不可导

4、. C可导函数的极值点一定发生在其驻点上.D函数的极值点可能发生在不可导点上.答案: (14)下列函数在指定区间上单调增加的是( ) A B C D答案:B(15)下列等式成立的是()A BC D答案:C(16)以下等式成立的是( )A B C D 答案:D(17)( )A. B. C. D. 答案:A(18)下列定积分中积分值为0的是( ) A B C D 答案:A(19)设是连续的奇函数,则定积分( )A0B CD 答案:A(20)下列无穷积分收敛的是()A B C D答案:D (21)微分方程的通解为( ) A B C D答案:C(22)下列微分方程中为可分离变量方程的是()A. ; B

5、. ; C. ; D. 答案:B3、 计算题 (1) 解:(2) 解: (3)解:(4)设,求 解: (5)设,求.解: (6)设,求.解: (7)设,求.解: (8) 解:(9)解:(10)解:=(11) 解: (12)解:(13)解:4、 应用题(1)欲做一个底为正方形,容积为108立方米的长方体开口容器,怎样做法用料最省?解:设底边的边长为,高为,用材料为,由已知 令,解得是唯一驻点, 且,说明是函数的极小值点,所以当,用料最省.(2)用钢板焊接一个容积为4的正方形的水箱,已知钢板每平方米10元,焊接费40元,问水箱的尺寸如何选择,可使总费最低?最低总费是多少?解:设水箱的底边长为,高为

6、,表面积为,且有所以 令,得, 因为本问题存在最小值,且函数的驻点唯一,所以,当时水箱的面积最小. 此时的费用为 (元) 请您删除一下内容,O(_)O谢谢!2015年中央电大期末复习考试小抄大全,电大期末考试必备小抄,电大考试必过小抄Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the seven-day Chinese请您删除一下内容,O(_)O谢谢!National Day holiday could be the best occa

7、sion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may become more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you tr

8、avel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and accommodation prices, with the possibility that there will be no rooms ava

9、ilable. It is also common that youllwait in the line for one hour to get a ticket, and another two hours at the site, to only see a tiny bit of the place due to the crowds. Last year, 428 million tourists traveled in China over the week-long holiday in October. Traveling during this period is a matt

10、er that needs thorough preparation. If you are short on time to plan the upcoming Golden Week it may not be a bad idea to avoid some of the most crowded places for now. There is always a place so fascinating that everyone yearns for. Arxan is a place like this. The beauty of Arxan is everlasting reg

11、ardless of the changing of four seasons. Bestowed by nature, its spectacular seasonal landscape and mountains are just beyond word. Arxan is a crucial destination for the recommended travelling route, China Inner Mongolia Arxan Hailar Manzhouli. It is also the joint of the four prairies across the Sino-Mongolian border, where people gravitate towards the exotic atmosphere mixed with Chinese, Russian, and Mongolia elements. As a historic site for the Yitian Battle, Arxan still embodies the

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