A: [img=11x14]18031ae4aaf4c6e.png[/img]
B: [img=22x43]18031ae4b2322d3.png[/img]
C: [img=20x18]18031ae4bac58d5.png[/img]
D: [img=22x43]18031ae4c2973d5.png[/img]
举一反三
- 由曲面[img=107x30]18031ae499f7dbd.png[/img]与曲面z=[img=119x26]18031ae4a28d643.png[/img]所围立体体积等于( ) 未知类型:{'options': ['', '', '', ''], 'type': 102}
- 由曲面[img=118x26]18030c44e3019b8.png[/img]及[img=88x26]18030c44ebbcf69.png[/img]所围立体的体积是 A: [img=11x14]18030c44f36838b.png[/img] B: [img=22x43]18030c44fa8b79d.png[/img] C: [img=22x43]18030c45030bd6b.png[/img] D: [img=20x18]18030c450b1107c.png[/img] E: [img=22x43]18030c451342458.png[/img]
- 由曲面[img=118x26]18038a0601ee0f1.png[/img]及[img=88x26]18038a060a498cf.png[/img]所围立体的体积是 A: [img=11x14]18038a06122c9d5.png[/img] B: [img=22x43]18038a061b2acde.png[/img] C: [img=22x43]18038a062352616.png[/img] D: [img=20x18]18038a062c05471.png[/img] E: [img=22x43]18038a0634af31e.png[/img]
- 由曲面[img=118x26]1803c249640bbdf.png[/img]及[img=88x26]1803c2496bbd438.png[/img]所围立体的体积是 A: [img=11x14]1803c24973e1526.png[/img] B: [img=22x43]1803c2497c3e88f.png[/img] C: [img=22x43]1803c249845cee8.png[/img] D: [img=20x18]1803c2498c96094.png[/img] E: [img=22x43]1803c24994a5edf.png[/img]
- 空间物体[img=13x19]1803857261fbd87.png[/img]由曲面[img=138x30]180385726a8944c.png[/img]与曲面[img=107x30]180385727384b34.png[/img]所围,密度为[img=99x25]180385727c3803a.png[/img],则它的质量为 A: [img=20x18]1803857285384a2.png[/img] B: [img=11x14]180385728e8d3df.png[/img] C: [img=20x18]18038572976c256.png[/img] D: [img=20x18]180385729f4dc3a.png[/img] E: [img=22x43]18038572a7a49c9.png[/img] F: [img=22x43]18038572b028070.png[/img] G: [img=22x43]18038572b901755.png[/img]
内容
- 0
空间物体[img=13x19]18030f9805beded.png[/img]由曲面[img=138x30]18030f980d51367.png[/img]与曲面[img=107x30]18030f98157f989.png[/img]所围,密度为[img=99x25]18030f981df1310.png[/img],则它的质量为 A: [img=20x18]18030f98268800b.png[/img] B: [img=11x14]18030f982ebb72b.png[/img] C: [img=20x18]18030f9837205fa.png[/img] D: [img=20x18]18030f983f9ee4d.png[/img] E: [img=22x43]18030f984c06ca2.png[/img] F: [img=22x43]18030f98541f0e5.png[/img] G: [img=22x43]18030f985cc3014.png[/img]
- 1
空间物体[img=13x19]18030f99d241214.png[/img]由曲面[img=138x30]18030f99da4e6a8.png[/img]与曲面[img=107x30]18030f99e274b74.png[/img]所围,密度为[img=99x25]18030f99eb277ec.png[/img],则它的质量为 A: [img=20x18]18030f99f3b975c.png[/img] B: [img=11x14]18030f99fbf7f94.png[/img] C: [img=20x18]18030f9a030a4e3.png[/img] D: [img=20x18]18030f9a0ab7c36.png[/img] E: [img=22x43]18030f9a130ef25.png[/img] F: [img=22x43]18030f9a1c05ad9.png[/img] G: [img=22x43]18030f9a241930f.png[/img]
- 2
空间物体[img=13x19]180322a81176f06.png[/img]由曲面[img=138x30]180322a819aa174.png[/img]与曲面[img=107x30]180322a82217477.png[/img]所围,密度为[img=99x25]180322a82adc415.png[/img],则它的质量为 A: [img=20x18]180322a8342c5a9.png[/img] B: [img=11x14]180322a83d2690f.png[/img] C: [img=20x18]180322a844fda1d.png[/img] D: [img=20x18]180322a84d76823.png[/img] E: [img=22x43]180322a85697243.png[/img] F: [img=22x43]180322a85f9c593.png[/img] G: [img=22x43]180322a8676a528.png[/img]
- 3
求不定积分[img=115x46]17da65382f8e1b9.png[/img]; ( ) A: x - (5*log(x + 1))/4 - (3*log(x - 3)) B: (5*log(x + 1))/4 - (3*log(x - 3)) C: x - (5*log(x + 1))/4 - (3*log(x - 3))/4 D: (5*log(x + 1))/4 - (3*log(x - 3))/4
- 4
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]