已知曲线y=x3在点P处的切线的斜率k=3,则点P的坐标是()
A: (1,1)
B: (-1,1)
C: (1,1)或(-1,-1)
D: (2,8)或(-2,-8)
A: (1,1)
B: (-1,1)
C: (1,1)或(-1,-1)
D: (2,8)或(-2,-8)
举一反三
- 已知函数f(x)=x3在点P处的导数值为3,则P点的坐标为( ) A: (-2,-8) B: (-1,-1) C: (-2,-8)或(2,8) D: (-1,-1)或(1,1)
- 曲线Y=x-3在点(1,1)处的切线的斜率为() A: -1 B: -2 C: -3 D: -4
- 曲线y=x3的拐点坐标是 A: (-1,-1) B: (0,0) C: (1,1) D: (2,8)
- 试判断原子态:1s1s3S1,1s2p3P2,1s2p1D1,2s2p3P2中,下面哪组是存在的? A: 1s1s3S1,1s2p3P2; B: 1s2p3P2,1s2p1D1; C: 1s2p3P2,2s2p3P2; D: 1s1s3S1,1s2p1D1;
- 求曲线[img=39x20]17e43671d59c7c6.jpg[/img]在点(1,1)处切点的斜率 A: 1 B: 3 C: -1 D: 2