Let \(f: \mathbf{R} \rightarrow \mathbf{R}\) be a function which satisfies \(f(x+y)=f(x)+f(y) \f.... VIDEO
Let \(f: \mathbf{R} \rightarrow \mathbf{R}\) be a function which satisfies \(f(x+y)=f(x)+f(y) \forall x, y \in \mathbf{R}\). If \(f(1)=2\) and \(g(n)=\sum_{k=1}^{(n-1)} f(k), n \in \mathbf{N}\) then the value of \(n\), for which \(g(n)=20\), is : 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live
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