双重积分

级别: 荣誉会员 二等解题奖
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注册时间:2005-10-02
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Solu : Because /f(x)-f(a)/=/(x-a)/*/x+a-1/ ,As |x-a|<1,to get: /(x-a)/*/x+a-1/</x+a-1/=/(x-a)+(2a-1)/<or=/x-a/+/2a-1/<1+2/a/+1=2(1+/a/),Done
When you do this type of problems , you should observe the structure of the inequation first , then you must try to substitute the condition to the inequation and then explore the connection between them
Doubleintegral
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