Question

Let f is real valued function defined by f(x) = e^x - e^-|x| / e^x + e^|x|, then the range of x is ​

Answer 1

Answer:

[0,1/2)

Step-by-step explanation:

for x<0 : f(x) = 0

for x>= 0 : f(x) = 1/2 - 1/2×e^-2x

so max value for f(x) approaches 1/2.