Noel's function

Level pending

Let f(x) be a real-valued function such that f(x) + 2f((x+1)/(x-1)) = 1/x for all values of x except -1, 0 and 1. If f(4) = a/b where a and b are positive coprime integers, what is a-b?

×

Problem Loading...

Note Loading...

Set Loading...