设[img=13x19]1803d34052e10e9.png[/img]为由曲面[img=107x30]1803d3405b84812.png[/img]及平面[img=42x18]1803d34063d9d08.png[/img]所围成的立体的表面,则曲面积分[img=171x60]1803d3406dffd00.png[/img]
A: [img=69x48]1803d340764cb90.png[/img]
B: [img=11x39]1803d3407edcd1f.png[/img]
C: [img=38x48]1803d3408726974.png[/img]
D: 0
A: [img=69x48]1803d340764cb90.png[/img]
B: [img=11x39]1803d3407edcd1f.png[/img]
C: [img=38x48]1803d3408726974.png[/img]
D: 0
举一反三
- 设[img=13x19]1803d34052e10e9.png[/img]为由曲面[img=107x30]1803d3405b84812.png[/img]及平面[img=42x18]1803d34063d9d08.png[/img]所围成的立体的表面,则曲面积分[img=171x60]1803d3406dffd00.png[/img] 未知类型:{'options': ['', '', '', '0'], 'type': 102}
- 设[img=13x19]1803d347e2ede4a.png[/img]为由曲面[img=107x30]1803d347eb08213.png[/img]及平面[img=42x18]1803d347f3133cd.png[/img]所围成的立体的表面,则曲面积分[img=171x60]1803d347fd53ad4.png[/img] A: [img=69x48]1803d34805cc769.png[/img] B: [img=11x39]1803d3480e7477b.png[/img] C: [img=38x48]1803d348172be42.png[/img] D: 0
- 设[img=13x19]1803d347e2ede4a.png[/img]为由曲面[img=107x30]1803d347eb08213.png[/img]及平面[img=42x18]1803d347f3133cd.png[/img]所围成的立体的表面,则曲面积分[img=171x60]1803d347fd53ad4.png[/img] 未知类型:{'options': ['', '', '', '0'], 'type': 102}
- 设函数f(x,y,z)为连续函数,S表示平面x + y + z =1位于第一卦限内的部分 ,则曲面积分[img=171x60]1803d35c18db5f3.png[/img] A: [img=272x51]1803d35c2314001.png[/img] B: [img=240x51]1803d35c2e9faaf.png[/img] C: [img=245x51]1803d35c39386a6.png[/img] D: [img=256x51]1803d35c44525a9.png[/img]
- X为随机变量,E(X)=-1,D(X)=3,则[img=105x27]17de66c4ef75d99.png[/img] A: 18 B: 9 C: 30 D: 32