已知微分方程[img=98x26]1802fb226144921.png[/img]的每个解都在区间[img=68x25]1802fb2269cbe27.png[/img]上有界，则实数b的取值范围是
A: [0,[img=32x19]1802fb2271a3fdc.png[/img]]
B: (-[img=18x14]1802fb227a5807f.png[/img],0]
C: (-[img=18x14]1802fb227a5807f.png[/img],4]
D: (-[img=18x14]1802fb227a5807f.png[/img],+[img=18x14]1802fb227a5807f.png[/img])
A: [0,[img=32x19]1802fb2271a3fdc.png[/img]]
B: (-[img=18x14]1802fb227a5807f.png[/img],0]
C: (-[img=18x14]1802fb227a5807f.png[/img],4]
D: (-[img=18x14]1802fb227a5807f.png[/img],+[img=18x14]1802fb227a5807f.png[/img])
举一反三
- 图中的力F对O点的矩为多少？[img=744x149]18036e09021933f.png[/img][img=685x233]18036e090d730fc.png[/img][img=735x315]18036e0919b7d9d.png[/img] A: 0，Fl, Fb B: Fl, Fb,0 C: Fb,Fl,0 D: Fl,Fb,0
- 图中的力F对O点的矩为多少？[img=744x149]18036264958edca.png[/img][img=685x233]18036264a0a5ed0.png[/img][img=735x315]18036264ac698ce.png[/img] A: 0，Fl, Fb B: Fl, Fb,0 C: Fb,Fl,0 D: Fl,Fb,0
- 图中的力F对O点的矩为多少？[img=744x149]1802f3fa5d08ce2.png[/img][img=685x233]1802f3fa67fe3e8.png[/img][img=735x315]1802f3fa7529558.png[/img] A: 0，Fl, Fb B: Fl, Fb,0 C: Fb,Fl,0 D: Fl,Fb,0
- 图中的力F对O点的矩为多少？[img=744x149]18035d1c6fd7961.png[/img][img=685x233]18035d1c7ab1df4.png[/img][img=735x315]18035d1c859b5d7.png[/img] A: 0，Fl, Fb B: Fl, Fb,0 C: Fb,Fl,0 D: Fl,Fb,0
- 图中的力F对O点的矩为多少？[img=744x149]1802f3f8b9285a5.png[/img][img=685x233]1802f3f8c4edd9d.png[/img][img=735x315]1802f3f8d15814b.png[/img] A: 0，Fl, Fb B: Fl, Fb,0 C: Fb,Fl,0 D: Fl,Fb,0