Question

Which answer represents the series in sigma notation? −3+(−1)+1+3+5 A:∑j=15(2j−5)

Answer 1

Answer:

A:∑j=15(2j−5)

Step-by-step explanation:

a = -3

d = -1 - (-3) = -1 + 3 = 2

j-th term: a + (j-1)d

-3 + (j - 1)(2)

-3 + 2j - 2

2j - 5