设[img=13x19]1803856dcb79737.png[/img]是圆柱面[img=100x26]1803856dd4e9a74.png[/img]与[img=95x23]1803856ddd3f6e9.png[/img]所围圆柱的外侧，则[img=267x48]1803856de8977ee.png[/img]等于
A: [img=31x22]1803856df0af4a3.png[/img]
B: [img=40x22]1803856df8c861d.png[/img]
C: [img=40x22]1803856e009dda2.png[/img]
D: [img=40x22]1803856e09a9666.png[/img]
E: [img=40x22]1803856e1275a94.png[/img]
F: [img=40x22]1803856e1b05c6e.png[/img]
G: [img=40x22]1803856e2434279.png[/img]
H: [img=40x22]1803856e2c9c0c8.png[/img]
I: [img=40x22]1803856e35779a2.png[/img]
J: [img=49x22]1803856e3e86cc8.png[/img]
A: [img=31x22]1803856df0af4a3.png[/img]
B: [img=40x22]1803856df8c861d.png[/img]
C: [img=40x22]1803856e009dda2.png[/img]
D: [img=40x22]1803856e09a9666.png[/img]
E: [img=40x22]1803856e1275a94.png[/img]
F: [img=40x22]1803856e1b05c6e.png[/img]
G: [img=40x22]1803856e2434279.png[/img]
H: [img=40x22]1803856e2c9c0c8.png[/img]
I: [img=40x22]1803856e35779a2.png[/img]
J: [img=49x22]1803856e3e86cc8.png[/img]
举一反三
- 设[img=13x19]18030f91887aa57.png[/img]是圆柱面[img=100x26]18030f9190bf46f.png[/img]与[img=95x23]18030f9198caa29.png[/img]所围圆柱的外侧，则[img=267x48]18030f91a278826.png[/img]等于 A: [img=31x22]18030f91aadf149.png[/img] B: [img=40x22]18030f91b302b36.png[/img] C: [img=40x22]18030f91bb18085.png[/img] D: [img=40x22]18030f91c3ca99a.png[/img] E: [img=40x22]18030f91cbc05f0.png[/img] F: [img=40x22]18030f91d342525.png[/img] G: [img=40x22]18030f91db87ff9.png[/img] H: [img=40x22]18030f91e392b19.png[/img] I: [img=40x22]18030f91ec13a44.png[/img] J: [img=49x22]18030f91f49d7eb.png[/img]
- 设[img=13x19]1803c1e63e0a807.png[/img]是圆柱面[img=100x26]1803c1e6463abf6.png[/img]与[img=95x23]1803c1e6503b245.png[/img]所围圆柱的外侧，则[img=267x48]1803c1e65be5868.png[/img]等于 A: [img=31x22]1803c1e66595e48.png[/img] B: [img=40x22]1803c1e66d65c3e.png[/img] C: [img=40x22]1803c1e675de3c2.png[/img] D: [img=40x22]1803c1e67dccf24.png[/img] E: [img=40x22]1803c1e685e301a.png[/img] F: [img=40x22]1803c1e68ea0f2d.png[/img] G: [img=40x22]1803c1e69773a14.png[/img] H: [img=40x22]1803c1e69fcf2b2.png[/img] I: [img=40x22]1803c1e6a8982c9.png[/img] J: [img=49x22]1803c1e6b06fb85.png[/img]
- 设[img=162x19]17e0ab913cc7ca8.jpg[/img]且X，Y相互独立，则[img=84x19]17e0ab9147a14b0.jpg[/img]. A: 14 B: 22 C: 32 D: 40
- 设随机变量(X,Y)在区域｛(x,y): 0<|y|< x <2｝内均匀分布，则以下结果正确的是 A: 当0<x<2时，[img=96x25]1802dded7db6eef.png[/img]. B: E(X)=4/3 C: 当0<|y|<2时,[img=105x45]1802dded872b92f.png[/img]. D: P(X<1)=0.5 E: 当0<x<2时,[img=110x45]1802dded915de6e.png[/img]. F: E(X)=2/3 G: 当0<y<2时，[img=95x43]1802dded9a54300.png[/img].
- 已知随机变量X的分布函数为[img=136x49]1803b69024c8270.png[/img] ，则X的均值和方差分别为 A: E(X)=2, D(X)=4 B: E(X)=4, D(x)=2 C: [img=162x43]1803b6902cd8bfb.png[/img] D: [img=162x43]1803b69034d9ffd.png[/img]