Find the sum of the series.
-$$\sum _ { j = 1 } ^ { 4 } \left( j ^ { 2 } - 4 \right)$$
A) 14
B) 2
C) 30
D) 12

Name: Find the sum of the series. -\[\sum _ { j = 1 } ^ { 4 } \left( j ^ { 2 } - 4 \right)\] A) 14 B) 2 C) 30 D) 12
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Question

Quizplus · Accepted Answer

The sum of the series is calculated by plugging in the values of $j$ from 1 to 4 into the formula $j^2 - 4$ and adding the results: $(1^2 - 4) + (2^2 - 4) + (3^2 - 4) + (4^2 - 4) = (-3) + 0 + 5 + 12 = 14.$

Find the Sum of the Series ∑j=14(j2−4)\sum _ { j = 1 } ^ { 4 } \left( j ^ { 2 } - 4 \right)j=1∑4​(j2−4)

Find the Sum of the Series $\sum _ { j = 1 } ^ { 4 } \left( j ^ { 2 } - 4 \right)$