北语网院21秋《高等数学(本)》作业_2满分
21秋《高等数学(本)》作业_21.[单选题] 若<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image330.gif" width="45" height="24"/></sub>,则<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image332.gif" width="55" height="48"/></sub>( )
A.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image334.gif" width="12" height="15" /></sub></span>
B.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image327.gif" width="16" height="13" /></sub> </span>
C.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image325.gif" width="16" height="41" /></sub></span>
D.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image338.gif" width="28" height="41" /></sub></span>
答:——C——
2.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3771.jpg"/>
A.
B.
C.
D.
答:——B——
3.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3770.GIF"/>
A.
B.
C.
D.
答:——C——
4.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3801.jpg"/>
A.
B.
C.
D.
答:————
5.[单选题] 如果<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image311.gif" width="52" height="21"/></sub>具有二阶连续偏导数,则<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image313.gif" width="83" height="47"/></sub>( )
A.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image315.gif" width="69" height="44" /></sub></span>
B.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image317.gif" width="69" height="44" /></sub> </span>
C.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image319.gif" width="69" 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/image321.gif" width="69" height="47" /></sub></span>
答:————
6.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3805.jpg"/>
A.
B.
C.
D.
答:————
7.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3776.jpg"/>
A.
B.
C.
D.
答:————
8.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3777.jpg"/>
A.
B.
C.
D.
答:————
9.[单选题] 下列级数中一定收敛的是( )
A.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image516.gif" width="67" height="45" /></sub></span>
B.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image518.gif" width="73" 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/image520.gif" width="77" height="49" /></sub></span>
D.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image522.gif" width="120" height="37" /></sub></span>
答:————
10.[单选题] 二重积分<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image414.gif" width="80" height="39"/></sub>( ),D为<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image412.gif" width="167" height="21"/></sub>所围成的矩形区域。
A.0
B.1
C.-1
D.2
答:————
11.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3755.jpg"/>
A.
B.
C.
D.
答:————
12.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3767.GIF"/>
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B.
C.
D.
答:————
13.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3766.jpg"/>
A.
B.
C.
D.
答:————
14.[单选题] <sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image299.gif" width="97" height="29"/></sub>的定义域是( )
A.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image301.gif" width="105" height="24" /></sub></span>
B.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image303.gif" width="105" height="24" /></sub></span>
C.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image305.gif" width="105" height="24" /></sub> </span>
D.<span><sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image307.gif" width="105" height="24" /></sub></span>
答:————
15.[单选题] <img src="http://otsstatic.chinaedu.net/ots/blcu/eblcuimage/3765.jpg"/>
A.
B.
C.
D.
答:————
16.[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/image693.gif" width="77" height="21"/></sub>在点<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image695.gif" width="40" height="21"/></sub>处的偏导数存在,则<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image697.gif" width="93" height="44"/></sub>是<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image684.gif" width="12" height="13"/></sub>的全微分。
A.对
B.错
答:————
17.[判断题] 对于多元函数而言,偏导数存在则一定可微。
A.对
B.错
答:————
18.[判断题] 如果函数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image608.gif" width="75" height="21"/></sub>的两个二阶混合偏导数连续,则它们一定相等。
A.对
B.错
答:————
19.[判断题] 方程<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image700.gif" width="109" height="24"/></sub>对应的二元函数只有<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image702.gif" width="113" height="29"/></sub>。
A.对
B.错
答:————
20.[判断题] 对多元函数而言,如果函数的各个偏导数存在,则该函数在该点必然连续。
A.对
B.错
答:————
21.[判断题] 方程<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image682.gif" width="61" height="44"/></sub>所确定的隐函数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image684.gif" width="12" height="13"/></sub>对<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image086.gif" width="13" height="15"/></sub>的偏导数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image687.gif" width="49" height="44"/></sub>。
A.对
B.错
答:————
22.[判断题] 幂级数的展开是唯一的。
A.对
B.错
答:————
23.[判断题] 级数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image652.gif" width="39" height="45"/></sub>收敛,但<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image654.gif" width="93" height="45"/></sub>未必收敛。
A.对
B.错
答:————
24.[判断题] 由极值的定义知,函数<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image592.gif" width="85" height="24"/></sub>在点<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image594.gif" width="52" height="21"/></sub>处取得极小值。
A.对
B.错
答:————
25.[判断题] 设<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image674.gif" width="76" height="21"/></sub>,<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image676.gif" width="75" height="21"/></sub>,则<sub><img src="http://otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b22-7d74-4fb3-af06-81b3837ce025/xia.files/image678.gif" width="59" height="41"/></sub>。
A.对
B.错
答:————
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