设[img=97x19]17e43699f23cb7a.jpg[/img]则[img=118x34]17e43699f9b3aa4.jpg[/img]
举一反三
- 设[img=127x53]17f1b3d6db98b83.jpg[/img],f(x)=arctanΧ,则[img=56x55]17f1b3d82842941.jpg[/img]=()。 A: π B: 3π/4 C: -3π/4 D: 2π
- 设f(x)=[img=15x18]17da42685cb8d76.jpg[/img],则f【f'(x)】=
- 设[img=116x35]17da61562a72b1b.jpg[/img],则f(x)的连续区间() A: (-∞,+∞); B: {x|x≠-3,x≠2}
- 若f(x)+f(-x)=0, 则[img=95x39]17da608af452d96.jpg[/img]. 若f(x)=f(-x), 则 [img=170x38]17da60541207426.jpg[/img]
- 设 f(x)=1-2x,g(f(x))=(1-x)/x ,则 [img=51x43]180349caea51829.png[/img] A: 0 B: 1 C: 2 D: 3