Ying has a different method for summing an infinite series. Here are her steps: Homework Help ✎
1) Let S = the sum.
2) Separate the first term from the rest of the series.
3) Factor the rest of the terms so that the remaining factor is S.
4) Substitute S for the other factor.
5) Solve for S.
Apply Ying’s method to the following problem. The first three steps are done for you. Copy them, then complete the solution.
Start of Solution: