已知曲面[img=118x26]1802e96917c5e37.png[/img]上点[img=18x19]1802e9691f3f436.png[/img]处的切平面平行于平面[img=123x22]1802e969272f4e0.png[/img],则点[img=18x19]1802e9691f3f436.png[/img]的坐标是( )
未知类型:{'options': ['', '[img src="https://img2.ph.126.net/uW00rMjEEJLQBId9YqVcfA==/6631915489166296910.png"]', '', ''], 'type': 102}
未知类型:{'options': ['', '[img src="https://img2.ph.126.net/uW00rMjEEJLQBId9YqVcfA==/6631915489166296910.png"]', '', ''], 'type': 102}
举一反三
- 已知曲面[img=118x26]1802e941066ea4b.png[/img]上点[img=18x19]1802e9410fc3d0d.png[/img]处的切平面平行于平面[img=123x22]1802e94117f9ae3.png[/img],则点[img=18x19]1802e9410fc3d0d.png[/img]的坐标是( ) 未知类型:{'options': ['', '[img src="http://img2.ph.126.net/uW00rMjEEJLQBId9YqVcfA==/6631915489166296910.png"]', '', ''], 'type': 102}
- 已知曲面[img=118x26]1803b307671cbf8.png[/img]上点[img=18x19]1803b3076fb073b.png[/img]处的切平面平行于平面[img=123x22]1803b30778266e3.png[/img],则点[img=18x19]1803b3076fb073b.png[/img]的坐标是( ) A: [img=74x25]1803b30788189b7.png[/img] B: [img=69x25]1803b3079032acf.png[/img] C: [img=74x25]1803b30797c3b21.png[/img] D: [img=55x25]1803b3079f1dee8.png[/img]
- 已知曲面[img=118x26]1802e9683d046ad.png[/img]上点[img=18x19]1802e96845ded84.png[/img]处的切平面平行于平面[img=123x22]1802e9684dad130.png[/img],则点[img=18x19]1802e96845ded84.png[/img]的坐标是( ) A: [img=74x25]1802e96862de45f.png[/img] B: [img=69x25]1802e9686b22aac.png[/img] C: [img=74x25]1802e96873a0cb6.png[/img] D: [img=55x25]1802e9687c65e7f.png[/img]
- 已知函数f(x)是偶函数,且[img=32x28]17e0bf9077056a0.png[/img]f(x)=a,则下列结论一定正确的是( ) 未知类型:{'options': ['17e0bf90830f17d.pngf(x)=-a', ' [img=32x28]17e0bf90830f17d.png[/img]f(x)=a', ' [img=32x28]17e0bf90830f17d.png[/img]f(x)=|a|', ' [img=32x28]17e0bf9077056a0.png[/img]f(x)=|a|'], 'type': 102}
- 已知函数f(x)=[img=45x38]17da5d07942c7aa.jpg[/img],则f(-2)= 未知类型:{'options': ['', ' [img=11x15]17da3e634dee8f7.jpg[/img][img=11x33]17da428a6bf5c2b.jpg[/img]', ' 0', ' 不存在'], 'type': 102}