幂级数[img=169x60]1803d6a40008976.png[/img]的和函数为( ).
A: [img=66x52]1803d6a40856133.png[/img]
B: [img=63x46]1803d6a41148420.png[/img]
C: [img=63x46]1803d6a419e551c.png[/img]
D: [img=63x50]1803d6a422ccf97.png[/img]
A: [img=66x52]1803d6a40856133.png[/img]
B: [img=63x46]1803d6a41148420.png[/img]
C: [img=63x46]1803d6a419e551c.png[/img]
D: [img=63x50]1803d6a422ccf97.png[/img]
举一反三
- 幂级数[img=169x60]1803668bf93491d.png[/img]的和函数为( ). A: [img=66x52]1803668c018fb07.png[/img] B: [img=63x46]1803668c0b0cec2.png[/img] C: [img=63x46]1803668c1409547.png[/img] D: [img=63x50]1803668c1c99270.png[/img]
- 幂级数[img=169x60]1802d00a85f3e4c.png[/img]的和函数为( ). A: [img=66x52]1802d00a8f3a839.png[/img] B: [img=63x46]1802d00a980e664.png[/img] C: [img=63x46]1802d00aa0af24d.png[/img] D: [img=63x50]1802d00aa977ba9.png[/img]
- 设随机变量X的分布律为P(X=i)=i/6,i=1,2,3,记Y=max(X,2),则Y的分布函数F(x)=( ). A: [img=134x97]18032ce5f620d8f.png[/img] B: [img=134x97]18032ce5ffc4209.png[/img] C: [img=134x97]18032ce60b3653b.png[/img] D: [img=134x97]18032ce61742a1c.png[/img] E: [img=106x51]18032ce62052d87.png[/img]
- 设随机变量X的密度函数为[img=213x68]17e441f39920bf6.png[/img],则[img=111x43]17e441f3a2f722f.png[/img] A: 1/6 B: 1/3 C: 5/6 D: 1/2
- 设随机变量X的密度函数为[img=213x68]17e0acb7b0cf40c.png[/img],则[img=111x43]17e0acb7bb65f3a.png[/img] A: 1/6 B: 1/3 C: 5/6 D: 1/2