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