设一曲线通过点(1,2),曲线上任意点(x,y)处的切线斜率为[img=36x47]180350c76023cac.png[/img],则此曲线方程为( )
A: [img=91x26]180350c767e8a18.png[/img]
B: [img=94x26]180350c7714a4ec.png[/img]
C: [img=120x43]180350c77a36149.png[/img]
D: [img=116x43]180350c782bcebc.png[/img]
A: [img=91x26]180350c767e8a18.png[/img]
B: [img=94x26]180350c7714a4ec.png[/img]
C: [img=120x43]180350c77a36149.png[/img]
D: [img=116x43]180350c782bcebc.png[/img]
举一反三
- 设曲线上任意点P(x,y)处的切线的斜率为[img=11x42]1803d34bf3cd4ab.png[/img],且曲线经过点( -2,1),则该曲线的方程为( ) A: [img=120x26]1803d34bfc32fe9.png[/img] B: [img=120x26]1803d34c047cfcb.png[/img] C: [img=120x26]1803d34c0d0aa2f.png[/img] D: [img=120x26]1803d34c168abfb.png[/img]
- 曲线在点(x,y)处的切线斜率为该点横坐标的平方,曲线方程为( ) A: [img=92x43]1803d34dddd9736.png[/img] B: [img=96x43]1803d34de6c1495.png[/img] C: [img=112x43]1803d34def7162d.png[/img] D: [img=61x43]1803d34df81564d.png[/img]
- 曲线在点(x,y)处的切线斜率为该点横坐标的平方,曲线方程为( ) A: [img=92x43]1803d34df3992bd.png[/img] B: [img=96x43]1803d34dfb8bd9a.png[/img] C: [img=112x43]1803d34e04319ee.png[/img] D: [img=61x43]1803d34e0d4e3be.png[/img]
- 设函数[img=66x25]1803d34ffaf66ee.png[/img]在点[img=17x17]1803d35002a9b19.png[/img]处可导,且在点[img=17x17]1803d35002a9b19.png[/img]处取得极小值,则曲线在点[img=77x25]1803d35013f3d84.png[/img]处的切线方程为( ) A: x=0 B: x=1 C: [img=73x25]1803d3501c9bbc3.png[/img] D: [img=104x25]1803d350258c6fb.png[/img]
- 曲线y=cos x在点[img=46x43]1803b94e72abd50.png[/img]处的切线斜率=( ) A: [img=41x48]1803b94e7ac3a8b.png[/img] B: [img=25x48]1803b94e82346b5.png[/img] C: [img=25x43]1803b94e8a11cb3.png[/img] D: 1