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众所周知,用导数知识求函数f(x)的最大值与最小值,可按以下的程序去处理:1.确定函数的定义域;2.求出函数f(x)的导数f’(x);3.求出f(x)在定义域内的驻点(f’(x)=0的根称为驻点);4.研究在驻点左右附近的单调性得出求出函数f(x)的极值点;5.将极值点处的函数值与
It is well-known that using the derivative knowledge to find the maximum and minimum values of the function f (x) can be handled as follows: 1. Determine the domain of the function; 2. Find the derivative f ’(x) of the function f ; 3. Determine the stationary point of f (x) in the domain of definition (the root of f ’(x) = 0 is called the stationary point); 4. Study the monotonicity in the vicinity of the stationary point to find the function f ) Of the extreme point; 5. Extremum point function value and