sat2数学题,f(x)=5√2x ,what is the value off^(-1) (10)?
问题描述:
sat2数学题,f(x)=5√2x ,what is the value off^(-1) (10)?
If f(x)=5√2x ,what is the value of f^(-1) (10)?
答
求逆函数呗.f(x)=10时 看x得几.
The answer is:f^(-1) (10)=2.