一个有效的工具变量应满足如下两个条件:
A: [img=238x25]1803831b3d6eca3.png[/img]
B: [img=248x25]1803831b4757fd4.png[/img]
C: [img=248x25]1803831b5229971.png[/img]
D: [img=248x25]1803831b5d14961.png[/img]
A: [img=238x25]1803831b3d6eca3.png[/img]
B: [img=248x25]1803831b4757fd4.png[/img]
C: [img=248x25]1803831b5229971.png[/img]
D: [img=248x25]1803831b5d14961.png[/img]
举一反三
- 一个有效的工具变量应满足如下两个条件: A: [img=238x25]18032fe1cdc7bb0.png[/img] B: [img=248x25]18032fe1d90f95b.png[/img] C: [img=248x25]18032fe1e3a2d10.png[/img] D: [img=248x25]18032fe1ee4f921.png[/img]
- 一个有效的工具变量应满足如下两个条件: A: [img=238x25]18032fe211d16fa.png[/img] B: [img=248x25]18032fe21c848f1.png[/img] C: [img=248x25]18032fe226e44a9.png[/img] D: [img=248x25]18032fe2324b4e2.png[/img]
- 一个有效的工具变量必需满足下列两个条件: A: [img=248x25]1803831f151be27.png[/img] B: [img=248x25]1803831f2153861.png[/img] C: [img=248x25]1803831f2d93369.png[/img] D: [img=248x25]1803831f3904aa4.png[/img]1
- 一个有效的工具变量必需满足下列两个条件: A: [img=248x25]18032fe755e1d53.png[/img] B: [img=248x25]18032fe760b747f.png[/img] C: [img=248x25]18032fe76c537d8.png[/img] D: [img=248x25]18032fe7772ce09.png[/img]1
- 求不定积分[img=121x54]17da653839aa6ae.png[/img]; ( ) A: log(x^2 + 3*x + 25/4)/4 + (5*atan(x/2 + 3/4))/4 B: log(x^2 + 3*x + 25/4)/4 C: (5*atan(x/2 + 3/4))/4 D: log(x^2 + 3*x + 25/4)/4 - (5*atan(x/2 + 3/4))/4