Please help I’ll mark you as brainliest if correct!
Use the approach in Gauss's Problem to find the following sums of arithmetic sequences.
a. 1+2+3+4+...+998
b. 1+3+5+7+...+97
c. 2+5+8+11+...+302
d. 908 +899+890+881+...+8
a. The sum of the sequence is
