Re: How prove an inequality?

*To*: mathgroup at smc.vnet.net*Subject*: [mg62777] Re: How prove an inequality?*From*: danl at wolfram.com*Date*: Mon, 5 Dec 2005 03:37:28 -0500 (EST)*References*: <dmuif9$mm1$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Maybe f'[Interval[{1, 2}]] or Reduce[{f'[x] == k, 1 < x < 2}, {k, x}, Reals] give what you require? Daniel