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优化技巧1:利用函数性质求函数值例1已知f(x),g(x)分别是定义在R上的偶函数和奇函数,且f(x)-g(x)=e~x-x+1,求f(1)+g(1)的值.难度系数0.60解(常规解法)利用奇函数和偶函数的定义先求出函数解析式,再求值.
Optimization Skills 1: Utilizing the Function Properties to Obtain the Function Value Example 1 It is known that f (x) and g (x) are respectively the even and odd functions defined on R and f (x) -g -x + 1, find the value of f (1) + g (1) Difficulty coefficient 0.60 solution (conventional solution) Use the definition of odd function and even function to find the function analytic formula first and then evaluate.