Write both series as a summation in sigma notation.

Question

a). 3+2+5/3+3/2

b). 5+8+11+14+17+20

PLEASE HELP ME AND THANK YOU IF YOU DO!!!!

Answer 1

Sorry, I do not see the pattern in example a).

b however is the sum of an arithmetic series

∑[5+3(n-1)] for n=1 to 6