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Let be S the set of all nonzero real numbers. The function f:SR satisfies the following two properties:

(i) First,
f(1x)=xf(x) for all xS.

(ii) Second,
f(1x)+f(1y)=1+f(1x+y) for all xS and yS such that x+yS.

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×s.

 Apr 4, 2022
 #1
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ns = 10

 Apr 5, 2022
 #2
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Sorry, n×s10.

SpaceXGeek  Apr 5, 2022
 #3
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Hello? I don't know how to bump this without doing this, sorry.

 Apr 6, 2022

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