川农《经济应用数学(专科)》20年6月作业考核[答案]答案
《经济应用数学(专科)》20年6月作业考核-0001
试卷总分:100 得分:100
一、单选题 (共 20 道试题,共 80 分)
1.设函数{图}，则x=0是函数y的(? ).
A.极小值点
B.极大值点
C.最小值点
D.拐点
专业答案:----
专业答案:----
2.{图}
A.2
B.1/2
C.1
D.0
正确答案:----
正确答案:----
正确选项:----
正确答案:----
正确选项:----
3.设{图},则f(x)=(? ).
A.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img16.png" width="51" height="29" alt="" />
专业答案:----
B.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img15.png" width="51" height="30" alt="" />
正确答案:----
C.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img14.png" width="54" height="30" alt="" />
正确选项:----
D.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img13.png" width="51" height="28" alt="" />
正确选项:----
4.{图}
A.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img108.png" width="46" height="55" alt="" />
正确选项:----
B.1/2
C.1
D.0
5.设y=F(x)是可微函数，则dF(sinx)=(? ).
专业答案:----
A.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img69.png" width="79" height="27" alt="" />
专业答案:----
B.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img68.png" width="174" height="32" alt="" />
正确答案:----
C.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img67.png" width="176" height="23" alt="" />
正确选项:----
D.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img66.png" width="125" height="28" alt="" />
专业答案:----
6.{图}
A.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img152.png" width="125" height="34" alt="" />
正确答案:----
B.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img151.png" width="73" height="28" alt="" />
正确答案:----
C.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img150.png" width="196" height="59" alt="" />
正确选项:----
D.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img149.png" width="150" height="59" alt="" />
正确选项:----
7.函数f(x)为偶函数，且{图}存在，则{图}为(? ).
A.非奇非偶函数
B.奇函数
C.偶函数
D.不确定
专业答案:----
8.f(x)是定义在实数集上连续的奇函数，则{图}
A.f(1)
B.2f(1)
C.2
D.0
9.当x→0时，{图}的极限是(? ).
A.1/3
B.1/2
C.1
D.0
10.设函数{图}则x=1/2是函数y的(? ).
A.极小值点
B.极大值点
C.最大值点
D.拐点
11.由方程{图}所确定的隐函数y在x=0的切线方程为(? ).
A.y=x+1
B.y=x
C.y=2x+1
D.<img src=/mianfeiaopengzuoye/20200509/"/NEWEXAMSYSTEM/UploadFiles/PiLiangDaoRuShiTi/3372/391006/17101716181441_images17101716181441_img76.png" width="159" height="33" alt="" />
专业答案:----
12.当{图}时,{图}；当{图}时,{图}，则点{图}一定是函数f(x)的(? ).
A.驻点
B.极小值点
C.极大值点
D.以上都不对
正确答案:----
13.已知{图}，则k=(? ).
A.1
B.0
C.-2
D.-1
专业答案:----
14.已知A={a,b,c},B={-1,0,1},f:A→B使得f(a)+f(b)+f(c)=0，则映射f的个数为(? ).
A.8个
B.7个
C.6个
D.4个
正确答案:----
