北语网院21秋《高等数学(本)》作业_4资料
21秋《高等数学(本)》作业_41.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3780.jpg"/>
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D.
答:——A——
2.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3789.jpg"/>
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答:——C——
3.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3759.jpg"/>
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答:——D——
4.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3751.jpg"/>
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答:————
5.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3768.jpg"/>
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答:————
6.[单选题] 函数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image277.gif" width="73" height="23"/></sub>的极值点为( )
A.(0,0)
B.(0,1)
C.(1,0)
D.不存在
答:————
7.[单选题] 设<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image279.gif" width="217" height="24"/></sub>,则<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image281.gif" width="52" height="27"/></sub>=( )
A.41
B.40
C.42
D.39
答:————
8.[单选题] 微分方程<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image002.gif" width="119" height="24"/></sub>是( )
A.一阶线性方程
B.一阶齐次方程
C.可分离变量方程
D.二阶微分方程
答:————
9.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3773.jpg" width="656" height="196" style="width: 656px; height: 196px;"/>
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B.
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D.
答:————
10.[单选题] 设<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image133.gif" width="129" height="24"/></sub>,则<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image135.gif" width="36" height="41"/></sub>( )
A.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image137.gif" width="79" height="47" /></sub></span>
B.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image139.gif" width="79" height="47" /></sub> </span>
C.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image141.gif" width="79" height="47" /></sub></span>
D.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image143.gif" width="79" height="47" /></sub></span>
答:————
11.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3764.GIF"/>
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答:————
12.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3738.GIF"/>
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答:————
13.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3791.jpg"/>
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答:————
14.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3797.jpg"/>
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D.
答:————
15.[单选题] 二元函数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image258.gif" width="93" height="24"/></sub>的极大值点是( )
A.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image256.gif" width="35" height="21" /></sub></span>
B.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image162.gif" width="35" height="21" /></sub> </span>
C.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image262.gif" width="37" height="21" /></sub></span>
D.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image264.gif" width="32" height="21" /></sub></span>
答:————
16.[判断题] 二元函数的驻点必为极值点。
A.对
B.错
答:————
17.[判断题] 若函数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image104.gif" width="51" height="21"/></sub>在有界闭区域<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image619.gif" width="17" height="17"/></sub>上连续,则二重积分<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image621.gif" width="92" height="31"/></sub>存在。
A.对
B.错
答:————
18.[判断题] 设<em><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image689.gif" width="96" height="24"/></sub></em>,则<em><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image691.gif" width="67" height="25"/></sub></em>48。
A.对
B.错
答:————
19.[判断题] 设<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image104.gif" width="51" height="21"/></sub>是连续函数,则<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image624.gif" width="137" height="37"/><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image626.gif" width="137" height="37"/></sub>。
A.对
B.错
答:————
20.[判断题] 如果常数项级数的部分和数列没有极限,就称该级数是发散的。
A.对
B.错
答:————
21.[判断题] 设<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image772.gif" width="16" height="16"/></sub>是以点<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image774.gif" width="87" height="20"/></sub>和<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image776.gif" width="43" height="20"/></sub>为顶点的三角形区域,则<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image778.gif" width="69" height="41"/></sub>=<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image780.gif" width="16" height="41"/></sub>。
A.对
B.错
答:————
22.[判断题] 函数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image584.gif" width="76" height="21"/></sub>在<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image586.gif" width="64" height="24"/></sub>处一定有<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image588.gif" width="73" height="25"/><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image590.gif" width="87" height="25"/></sub>。
A.对
B.错
答:————
23.[判断题] 若函数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image584.gif" width="76" height="21"/></sub>在<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image586.gif" width="64" height="24"/></sub>处的两个偏导数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image600.gif" width="69" height="24"/></sub>与<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image602.gif" width="65" height="25"/></sub>均存在,则该函数在<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image164.gif" width="16" height="17"/></sub>点处一定连续。
A.对
B.错
答:————
24.[判断题] 函数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image668.gif" width="181" height="24"/></sub>有极小值。
A.对
B.错
答:————
25.[判断题] <sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image616.gif" width="88" height="49"/></sub>。
A.对
B.错
答:————
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