For what value(s) of the constant k will the following function not be its own inverse.

题目

For what value(s) of the constant k will the following function not be its own inverse.
f(x) =(x - k)/(x - 1)

答案

题目翻译过来应该是：当常量K取何值时,下列函数的反函数不是它自身?f(x) =(x - k)/(x - 1)所给函数f（x）自变量的定义域为x≠1当常量K取1时,原函数等价于f(x)=1 (x≠1) 没有反函数；当常量K取值不为1时,原函数的反函...