1. 下列函数为分布函数的是( )
A: [img=141x51]18032791d84dfca.png[/img]
B: [img=141x51]18032791e08545a.png[/img]
C: [img=141x51]18032791e8abeb1.png[/img]
D: [img=141x51]18032791f63626f.png[/img]
A: [img=141x51]18032791d84dfca.png[/img]
B: [img=141x51]18032791e08545a.png[/img]
C: [img=141x51]18032791e8abeb1.png[/img]
D: [img=141x51]18032791f63626f.png[/img]
举一反三
- 下列函数为分布函数的是( ) A: [img=141x51]180357401d989f6.png[/img] B: [img=141x51]180357402bf68e1.png[/img] C: [img=141x51]18035740355d7ed.png[/img] D: [img=141x51]180357404222a29.png[/img]
- 下列函数为分布函数的是( ) A: [img=141x51]1803da2b9d21074.png[/img] B: [img=141x51]1803da2baafb831.png[/img] C: [img=141x51]1803da2bb3d9e0e.png[/img] D: [img=141x51]1803da2bc1ca4db.png[/img]
- 设函数[img=141x51]17e44684b64aaa7.png[/img] ,选择数a =____,可使得f (x)在[img=69x23]17e446849bf62a1.png[/img]内连续.
- 已知非线性系统的微分方程为[img=136x51]1803bc4b5412b3b.png[/img],则利用近似线性化方法得到系统的局部线性化状态方程是( )。 A: [img=127x51]1803bc4b5c0d7d1.png[/img]和[img=141x51]1803bc4b63f0866.png[/img] B: [img=127x51]1803bc4b6cabb82.png[/img]和[img=141x51]1803bc4b750db29.png[/img] C: [img=127x51]1803bc4b7cd72ef.png[/img] D: [img=141x51]1803bc4b844dd82.png[/img]
- 设X的密度函数为f(x),分布函数为F(x),且f(x)是偶函数,则有 A: [img=235x53]1803b3ba8e4e24a.png[/img] B: [img=248x66]1803b3ba9822ce1.png[/img] C: F(−x)= F(x) D: F(−x)=2F(x)−1