+0  
 
+1
254
3
avatar+46 

Let be S the set of all nonzero real numbers. The function \(f : S \to \mathbb{R}\) satisfies the following two properties:

(i) First,
\(f\left( \frac{1}{x} \right) = xf(x)\) for all \(x \in S.\)

(ii) Second,
\(f \left( \frac{1}{x} \right) + f \left( \frac{1}{y} \right) = 1 + f \left( \frac{1}{x + y} \right)\) for all \(x \in S\) and \(y \in S\) such that \(x + y \in S.\)

Let n be the number of possible values of \(f(1),\) and let s be the sum of all possible values of \(f(1).\) Find \(n \times s.\)

 Apr 4, 2022
 #1
avatar
-1

ns = 10

 Apr 5, 2022
 #2
avatar+46 
+1

Sorry, \(n\times s \neq 10.\)

SpaceXGeek  Apr 5, 2022
 #3
avatar+46 
0

Hello? I don't know how to bump this without doing this, sorry.

 Apr 6, 2022

4 Online Users

avatar
avatar
avatar