1802e1b08ad3acb.png,若存在可逆矩阵P,使得[img=95x22]1802e1b093d68aa.png[/img], D为对角矩阵,则D=( )
A: [img=53x51]1802e1b09cc1b04.png[/img]
B: [img=53x51]1802e1b0a51fb8b.png[/img]
C: [img=81x51]1802e1b0af01805.png[/img]
D: [img=53x51]1802e1b0b994109.png[/img]
A: [img=53x51]1802e1b09cc1b04.png[/img]
B: [img=53x51]1802e1b0a51fb8b.png[/img]
C: [img=81x51]1802e1b0af01805.png[/img]
D: [img=53x51]1802e1b0b994109.png[/img]
举一反三
- 1802e1b24e5685b.png,若存在可逆矩阵P,使得[img=95x22]1802e1b2576b104.png[/img], D为对角矩阵,则D=( ) A: [img=53x51]1802e1b25f6d736.png[/img] B: [img=53x51]1802e1b2693b271.png[/img] C: [img=81x51]1802e1b27104920.png[/img] D: [img=53x51]1802e1b279ea95e.png[/img]
- 1802e1b4036b5e9.png,若存在可逆矩阵P,使得[img=95x22]1802e1b40c7d6f3.png[/img], D为对角矩阵,则D=( ) A: [img=53x51]1802e1b4148da1b.png[/img] B: [img=53x51]1802e1b41d024cb.png[/img] C: [img=81x51]1802e1b4260b221.png[/img] D: [img=53x51]1802e1b42f09fc5.png[/img]
- 1802e1b16a86f7c.png,若存在可逆矩阵P,使得[img=95x22]1802e1b172c874c.png[/img], D为对角矩阵,则D=( ) A: [img=53x51]1802e1b17bf6b14.png[/img] B: [img=53x51]1802e1b185cde5a.png[/img] C: [img=81x51]1802e1b18e9ead3.png[/img] D: [img=53x51]1802e1b195e03a9.png[/img]
- 已知X的分布律为P(X=-1)=1/4,P(X=0)=1/4,P(X=1)=3/8,P(X=3)=1/8,则E(2X+1)=( ),E([img=42x20]17e0c5d65688ad3.jpg[/img])=( )。
- 设X~U(a,b), a>;0,E(X)=3, D(X)=[img=15x41]17e438378e5b7d7.png[/img], 则P(1<;X<;3)=____。