Forwhich of the following functions f is ~$f\left ( x \right )=f\left ( 1-x \right )$~ for all x ?
~$f\left ( x \right )=1-x$~
~$f\left ( x \right )=1-x^{2}$~
~$f\left ( x \right )=x^{2}-\left ( 1-x \right )^{2}$~
~$f\left ( x \right )=x^{2}\left ( 1-x \right )^{2}$~
~$f\left ( x \right )=\frac{x}{1-x}$~
f(x)= f(1-x)意思是带进值一致,也就是表达式一致,不是互换!
登录 或 注册 后可以参加讨论