2021年河北大学高数题库计算题答案.pdf

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1、计算题,每道题 8 分1、解:1(,)(0,1)lim(1)xx yxy=1(,)(0,1)lim(1)yxyx yxy(5 分)=1limyye=e (3 分)2、解:由于222xyxy,故22102xyxy(5 分)则2210()02xxxyxy(2 分)故22(,)(,)lim()xx yxyxy=0 (1 分)3、解:12221,1,1(1,1,1)()zxyyuzxx1(2 分)121,1,12(1,1,1)()zyyyuzxx=2(2 分)221,1,1(1,1,1)lnzzyyuxx=0(2 分)则uuududxdydzxyz故1,1,12dudxy(2 分)4、解:由复合函数求

2、导的链式法则:22 sincosxsuesyy(5 分)2 sincosxtuesyy。(5 分)5、解:uxfxfy22(1 分)uyfyfx()22(1 分)222222222222222uxfxfxfyyfxfy(4 分)222222222222222uyfyfyfxxfyfx()()(2分)6、解设zzyxzyxF6,222精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 1 页,共 12 页62,2zFxFzx(2 分)zxFFxzzx262(2分)=322268262zxz(4 分)7、解令xyzezyxFz,xyeFyzFzzx,(2 分)xyeyzFFxzzzx

3、(2 分)=32232)(22xyeezyzxyzeyzzz(4分)8、解212xfyefxzxy(3 分)22211211112222yfxefxyeyfxefxyefefyxzxyxyxyxyxy(5 分)9、解设222,zyxezzyxF,则2222222222,2,12xyzxyzxyzxyzFexFeyFez(6 分)故222222222222212,212zyxzyxzyzyxzyxzxzeyeFFxzzexeFFxz(2 分)10、解21fyfxz(3 分)2221112112fxffyfxfyxz(5分)11、解21()()()zyf xyfxyyxyxxx(2 分)2zx y

4、=11()()()()()fxyfxyyfxyxyyxyxx(4 分)=()()()yfxyxyyxy(2 分)12、解122zfgygx(3 分)2122222zfxgxyggx y(5 分)精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 2 页,共 12 页文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6

5、ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6

6、 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R

7、6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1

8、R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A

9、1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4

10、A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G

11、4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A813、解1212(2)(sin)2coszfxyfyxfyxfxxx(3 分)212(2cos)zfyxfx yy=1112221222(2)(sin)cos(2)(sin)cosfxyfyxxfyyfxyfyxyxyy(4 分)=11122222(2sincos)sincoscosfxyx fyxxfxf(1 分)14、解23123(,)yzx f xyx yfxyfxx(3 分)341

12、2112242x fxfx yfyf(5 分)15、解12()zfxfx,(3 分)211122122()()()()zfxfxyffyx y。(5 分)16、解1221()zyfyfgxyx(3 分)212221()zyfyfgx yyyx=1112121222222221111()()()()()xxyfxfyffxffggyyyyxxx =112212323211xyfxyfffggyyxx(5 分)17、解令1,22zyxzyxF则1,2,2zyxFyFxF(2 分)所求切平面在点4,1,2的法向量1,2,4n(2 分)故所求切平面方程为0624zyx,(2 分)法线方程为142142

13、zyx(2 分)18、解212yyD2xydxdyxyd(5 分)=845(2 分)精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 3 页,共 12 页文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8

14、文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A

15、8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10

16、A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q1

17、0A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q

18、10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6

19、Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K

20、6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A819、解原式=2202101210 xxdyyxdxdyxydx(6 分)=3011(2 分)20、解设1(,)01,0,Dx yxyx2(,)01,1,Dx yxxy则22max,xyDedxdy=221max,xyDedxdy+222max,xyDedxdy(4 分)=21xDe dxdy+22yDe dxdy=2100 xxdx e dy+2100yydy e dx(3 分)=210 xxe dx+210yye dy=1e(1分)21、解xy z dxdydz23123000 xxyxdxy

21、 dyz dz(5 分)1560014xx dxy dy(2 分)1364(1 分)22、解:244sin22000 xy dvdddz(6 分)5123。(2 分)23、解利用球面坐标系计算2142000sincossinxdvddrrdr=420011sin(sin 20244(4 分)2142000cossinzdvddrrdr=420112sin248(3 分)故()8xz dv(1分)24、解zdv222400rzrdrddzdrdrzdz(5 分)22400164(16)23drrdr(3 分)25、解立体在z轴上的投影区域为0,4,平行于 xoy平面的平面截立体所得的截面精品w

22、o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 4 页,共 12 页文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编

23、码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档

24、编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文

25、档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8

26、文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A

27、8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10

28、A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q1

29、0A8222xyz,(04)z,于是(1 分)422222000()()zxyz dvdzdrz rdr(6分)=4204z dz=2563。(1 分)26、解:令cos,sinxt yt,则2cossinztt,积分曲线 C 的起点与终点所对应的t的值分别为2,0tt。(2 分)()()()Czy dxxz dyxy dz=022(sincos)2cos21tttdt(5 分)2(1 分)27、解2,2cosxPyeQxy 设 L 围成的区域为1,2PQyx(2 分)当 L 相对于取正向时21013xxDdxdydxdy(4 分)当 L 相对于取负向时,13I。(2 分)28、解因为0,0,

30、222222yxyQyxxyxyxP(2 分)又112,0,022yxyx(3 分)所以根据格林公式得022Cyxdxyxdyyx(3 分)29、解补充直线段0:1yC,方向为从点0,0O到0,2A则dyayedxayyeadxdydyayedxayyexCxxxyCxxcossincossin1220(5 分)=2a(3 分)30、解写出 L 的参数方程:L:222cossinaaaxtyt,02t;(1 分)精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 5 页,共 12 页文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:C

31、Y7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:

32、CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码

33、:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编

34、码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档

35、编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文

36、档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8

37、文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A822Lxy ds20|cos|22taadt(5 分)22a(2分)31、解:记()L a为曲线sinyax,0 x,则()L a=3(1)(2)Lydxxy dy=33

38、01sin(2sin)cos axxax ax dx(4 分)=3443aa,(1 分)令2()440L aa,得1a(1)a舍去,又(1)80L,(2 分)所以,()L a在1a处取得极小值,即为最小值,故所求曲线为sin,0yxx。(1 分)32、解原式4461(422)333xyDxyxydxdy(5 分)461。(3 分)33、解11001(1)(1)6xyxDzdxdyxy dxdydxxy dy(5 分)11116662zdxdyydzdxxdydz(3 分)34、解曲面在 xoy面上的投影区域为22(,)2,xyDx y xyx(2 分)2212xydSzzdxdy,将积分曲面方

39、程22zxy带入被积表达式,则zds=222xyDxydxdy(4 分)=2cos22022dr dr=3229。(2 分)35、解易看出()xy ds0(或通过计算得出)(4 分)用球面坐标写出的参数方程:于是Izdsddsincos0202。(4 分)精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 6 页,共 12 页文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8

40、文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A

41、8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10

42、A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q1

43、0A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q

44、10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6

45、Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K

46、6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A836、解记P x y zxQ x y zyR x y zz,,则P Q R,在球面 S及S所围成的区域 V 上有连续的偏导数,由高斯公式:3SVxdydzydzdxzdxdydxdydz。(5 分)34R(3 分)37、解已知积分曲面为闭曲,且满足高斯公式的条件,可直接用高斯公式将积分化为三重积分333Ix dydzy dzdx

47、z dxdy=2223()xyz dxdydz(4分)=32122000sinddrrdr(3 分)=125(1 分)38、解令1S表示2240 xyz,其法向量与z轴负向相同,表示 S与1S所围成的闭区域,有1122SSSIyzdzdxdxdyyzdzdxdxdy,(2 分)由高斯公式得12S Syzdzdxdxdy=zdv=2222000cossin4ddrrdr(3 分)按投影法得12Syzdzdxdxdy=1228xySDdxdydxdy(2 分)其中22(,)4xyDx yxy。所以1122S SSIyzdzdxdxdyyzdzdxdxdy=12。(1 分)39、解原式2222220

48、0 xyRDRxy dxdydRr rdr(5 分)3223201222()()233RRrR(3 分)40、解由高斯公式:x xdydzy ydzdxz zdxdyxyzdxdydz2222221233336(4 分)精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 7 页,共 12 页文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2

49、HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2

50、 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T2 HM9Z10G4A1R6 ZC9B5K6Q10A8文档编码:CY7N3P4Z10T

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