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Homework Statement
Find a function of a decaying logarithmic trend that passes through a set of 3 points (at x=1,2,3) whose sum is S, where S>0.
Homework Equations
The Attempt at a Solution
starting point: i assumed the equation had the form: $$y= -kln(x+1)+S$$ with the condition that must satisfy:
$$S=Σ(y(x))$$ from 1→3
but I don't know what to do next