15.5k views
1 vote
Please solve this question!!

Please solve this question!!-example-1

1 Answer

7 votes


f(x)=\displaystyle\sum_(n=1)^(\infty)c_n\cdot x^n \\\\[-0.35em] ~\dotfill\\\\ \displaystyle\sum_(n=1)^(\infty)c_n\cdot n\cdot x^n\implies n\sum_(n=1)^(\infty)c_n\cdot x^n\implies n\cdot f(x)\quad \textit{assuming

User Manoj Wadhwani
by
8.4k points