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全国2006年10月自考(课程代码:00023)高等数学(工本)试题

2015-08-14 15:04来源:重庆自考网
 
全国2006年10月高等教育自学考试
高等数学(工本)试题
课程代码:00023
一、单项选择题(本大题共20小题,每小题2分,共40分)
在每小题列出的四个备选项中只有一个是符合题目要求的,请将其代码填写在题后的括号内。错选、多选或未选均无分。
1.设函数f(x)=1-2x,g[f(x)]=,则g()=(   )
A.-                                                                         B.1
C.2                                                                             D.3
2.函数f(x)=的连接区间是(   )
A.(-                                                                  B.(-
C.(-)                                                      D.(-)
3.极限(   )
A.1                                                                            B.e
C.e2                                                                            D.e4
4.当x→0时,与x2等价的无穷小量是(   )
A.2-1                                                                     B.sinx
C.ln(1+x2)                                                                  D.e2x-1
5.曲线y=3x3-2x在点(1,1)处的切线方程为(   )
A.7x-y-6=0                                                                 B.4x-y-3=0
C.x-7y+6=0                                                                D.x+7y-8=0
6.设函数y=ln(   )

 
7.当a<x<b时,有f′(x)>0,f″(x)<0,则在区间(a,b)内,曲线y=f(x)的图形沿x轴正向是(   )
A.下降且为上凹的                                                      B.下降且为下凹的
C.上升且为上凹的                                                      D.上升且为下凹的
8.曲线y=1-(   )
A.有一条渐近线                                                         B.有二条渐近线
C.有三条渐近线                                                         D.无渐近线
9.设不定积分,则函数F(x)=(   )

10.设函数f(x)=,则定积分(   )
A.-                                                                         B.3
C.                                                                         D.6
11.设广义积分收敛,则(   )
A.q=1                                                                         B.q<1
C.q≥1                                                                       D.q>1
12.平面x-y-11=0和平面3x+8=0的夹角为(   )
A.                                                                          B.
C.                                                                          D.
13.方程z=x2+y2在空间直角坐标系中表示的图形是(   )
A.旋转抛物面                                                             B.上半球面
C.圆柱面                                                                    D.圆锥面
14.极限(   )
A.等于0                                                                     B.等于1
C.等于-1                                                                    D.不存在
15.已知函数z=xy(x>0),则=(   )
A.yxy                                                                                                                                                   B.y(y-1)xy-2
C.xy-1(ylnx+1)                                                             D.xy-1(ylnx-1)
16.设C是椭圆:x=acost,y=bsint(0≤t≤2π),则线积分(   )
A.0                                                                            B.2π
C.πab                                                                        D.2πab
17.下列函数中哪个不是微分方程y″-4y′+3y=0的解(   )
A.ex                                                                                                                                                       B.e2x
C.e3x                                                                                                                                                     D.ex+1
18.微分方程xy″=y′的通解为(   )
A.y=C1x+C2                                                                B.y=x2+C
C.y=C1x2+C2                                                               D.y=
19.下列无穷级数中,绝对收敛的无穷级数是(   )

20.当|x|<5时,函数f(x)=的麦克劳林展开式是(   )
A.                                                               B.
C.                                                               D. 
二、填空题(本大题共10小题,每空2分,共20分)
       请在每小题的空格中填上正确答案。错填、不填均无分。
21.函数f(x,y)=的定义域为______.
22.极限=______.
23.设函数y=cos2x,则______.
24.设不定积分,则f(x)= ______.
25.定积分______.
26.过点(3,-1,2)并且与yoz坐标面垂直的直线方程为______.
27.设函数z=e,则全微分dz=______.
28.累积分交换积分次序后为______.
29.设积分区域B:x2+y2≤1,则二重积分=______.
30.微分方程y″=x满足条件y′(0)=y(0)=0的特解为______.
三、计算题(本大题共5小题,每小题5分,共25分)
31.求极限
32.设方程ex+y-3x+2y2-5=0确定函数y=y(x),求
33.已知参数方程确定函数y=y(x),求
34.计算定积分
35.将函数f(x)=ln(x2+1)展开为x的幂级数.
四、应用和证明题(本大题共3小题,每小题5分,共15分)
36.证明方程5x4+4x-2=0在0与1之间至少有一个实根.
37.证明不等式
2e
38.求由抛物线y=x2,直线x=2和x轴所围成的平面图形,绕x轴旋转一周所形成的旋转体的体积.
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