masonbartolo8451 masonbartolo8451 02-06-2023 Mathematics contestada Please help with C & D Use the approach in Gauss's Problem to find the following sums of arithmetic sequences. a. 1+2+3+4+...+98 b. 1+3+5+7+...+103 c. 8+17+26+35+...+890 d. 504 + 499 +494 + 489 + +4 MAA *** a. The sum of th