北语网院平台18春《高等数学（下）》作业_1含答案资料
【北语网院】18春《高等数学（下）》作业_1（100分)【北京语言大学】18春《高等数学（下）》作业_1
北语网院作业答案
试卷总分100得分100
第1题二重积分<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image414.gif"width="80"height="39"/></sub>（），D为<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image412.gif"width="167"height="21"/></sub>所围成的矩形区域。
A、<span>0</span>
B、<span>1</span>
C、<span>1</span>
D、<span>2</span>
第2题<imgsrc="http//otsstatic.chinaedu.net/ots/blcu/eblcuimage/3742.BMP"/>
A、
B、
C、
D、
第3题<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image034.gif"width="95"height="24"/></sub>的通解为（）
A、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image036.gif"width="76"height="21"/></sub></span>
B、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image038.gif"width="88"height="21"/></sub></span>
C、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image040.gif"width="96"height="21"/></sub></span>
D、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image042.gif"width="96"height="21"/></sub></span>
第4题设<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image266.gif"width="117"height="24"/></sub>，则<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image268.gif"width="49"height="47"/></sub>（）
A、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image270.gif"width="13"height="19"/></sub></span>
B、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image272.gif"width="12"height="19"/></sub></span>
C、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image274.gif"width="21"height="19"/></sub></span>
D、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image098.gif"width="13"height="17"/></sub></span>
第5题<imgsrc="http//otsstatic.chinaedu.net/ots/blcu/eblcuimage/3773.jpg"/>
A、
B、
C、
D、
第6题<imgsrc="http//otsstatic.chinaedu.net/ots/blcu/eblcuimage/3727.GIF"/>
A、
B、
C、
D、
第7题设<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image158.gif"width="159"height="24"/></sub>则<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image160.gif"width="61"height="24"/></sub>（）
A、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image094.gif"width="9"height="17"/></sub></span>
B、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image096.gif"width="21"height="17"/></sub></span>
C、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image098.gif"width="13"height="17"/></sub></span>
D、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image100.gif"width="25"height="17"/></sub></span>
第8题若<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image330.gif"width="45"height="24"/></sub>，则<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image332.gif"width="55"height="48"/></sub>（）
A、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image334.gif"width="12"height="15"/></sub></span>
B、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image327.gif"width="16"height="13"/></sub></span>
C、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image325.gif"width="16"height="41"/></sub></span>
D、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image338.gif"width="28"height="41"/></sub></span>
第9题级数<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image496.gif"width="77"height="47"/></sub>的收敛域为（）
A、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image498.gif"width="36"height="21"/></sub></span>
B、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image500.gif"width="37"height="21"/></sub></span>
C、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image502.gif"width="37"height="21"/></sub></span>
D、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image504.gif"width="36"height="21"/></sub></span>
第10题函数<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image074.gif"width="103"height="21"/></sub>的全微分为（）
A、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image076.gif"width="251"height="23"/></sub></span>
B、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image078.gif"width="206"height="24"/></sub></span>
C、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image080.gif"width="367"height="24"/></sub></span>
D、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image082.gif"width="165"height="22"/></sub></span>
第11题如果<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image311.gif"width="52"height="21"/></sub>具有二阶连续偏导数，则<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image313.gif"width="83"height="47"/></sub>（）
A、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image315.gif"width="69"height="44"/></sub></span>
B、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image317.gif"width="69"height="44"/></sub></span>
C、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image319.gif"width="69"height="47"/></sub></span>
D、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image321.gif"width="69"height="47"/></sub></span>
第12题两个非零矢量<imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image055.gif"width="13"height="19"/>与<imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image056.gif"width="15"height="23"/>相互垂直的充要条件是（）
A、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image058.gif"width="57"height="19"/></sub></span>
B、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image060.gif"width="53"height="19"/></sub></span>
C、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image062.gif"width="49"height="19"/></sub></span>
D、<span><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image064.gif"width="54"height="19"/></sub></span>
第13题<imgsrc="http//otsstatic.chinaedu.net/ots/blcu/eblcuimage/3770.GIF"/>
A、
B、
C、
D、
第14题<imgsrc="http//otsstatic.chinaedu.net/ots/blcu/eblcuimage/3733.jpg"/>
A、
B、
C、
D、
第15题<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image416.gif"width="53"height="27"/></sub>在平面闭区域D上有界是二重积分<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image418.gif"width="101"height="39"/></sub>存在的（）
A、<span>必要条件</span>
B、<span>充分条件</span>
C、<span>充要条件</span>
D、<span>无关条件</span>
第16题若级数<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image646.gif"width="40"height="45"/></sub>收敛，则<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image648.gif"width="75"height="29"/></sub>。
√、对
、错
正确答案√
第17题设<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image580.gif"width="85"height="24"/></sub>，则<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image582.gif"width="83"height="44"/></sub>。
√、对
、错
正确答案
第18题函数<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image668.gif"width="181"height="24"/></sub>有极小值。
√、对
、错
正确答案
第19题函数<em><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image723.gif"width="92"height="24"/></sub></em>的全微分<imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image725.gif"width="33"height="19"/><i></i><sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image727.gif"width="108"height="24"/></sub>。
√、对
、错
正确答案
第20题设<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image693.gif"width="77"height="21"/></sub>，则一定有<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image715.gif"width="88"height="47"/></sub>成立。
√、对 奥鹏易百
、错
正确答案
第21题设<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image378.gif"width="75"height="21"/></sub>在点<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image657.gif"width="51"height="24"/></sub>处可微，则<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image378.gif"width="75"height="21"/></sub>在点<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image657.gif"width="51"height="24"/></sub>必定连续。
√、对
、错
正确答案√
第22题设函数<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image104.gif"width="51"height="21"/></sub>在点<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image641.gif"width="53"height="24"/></sub>处的偏导数<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image643.gif"width="49"height="44"/></sub>都存在，则<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image104.gif"width="51"height="21"/></sub>在该点处可微。
√、对
、错
正确答案
第23题<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image705.gif"width="57"height="24"/></sub>在点<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image264.gif"width="32"height="21"/></sub>处，当<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image708.gif"width="65"height="19"/></sub>，<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image710.gif"width="73"height="21"/></sub>时的全微分是<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image712.gif"width="33"height="19"/></sub>。
√、对
、错
正确答案√
第24题常微分方程都是一阶的。
√、对
、错
正确答案
第25题若函数<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image584.gif"width="76"height="21"/></sub>在<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image586.gif"width="64"height="24"/></sub>处的两个偏导数<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image600.gif"width="69"height="24"/></sub>与<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image602.gif"width="65"height="25"/></sub>均存在，则该函数在<sub><imgsrc="http//otsstatic.chinaedu.net/ots/blcu/quesimages/e0/25/52ae8b227d744fb3af0681b3837ce025/xia.files/image164.gif"width="16"height="17"/></sub>点处一定连续。
√、对
、错
正确答案
奥鹏易百
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