User contributions
- 02:27, 24 July 2012 (diff | hist) . . (+3) . . m Arithmetico-geometric series (→Infinite Sum: fixed error: added missing g_1 after a_1)
- 02:26, 24 July 2012 (diff | hist) . . (+6) . . m Arithmetico-geometric series (→Finite Sum: fixed error: g_1 missing after a_1 in 2 places)