Question

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Answer 1

\[a_{1}=3,a_{2}=4,a_{3}=−7,a_{4}=12,a_{5}=13,a_{6}=9,a_{7}=6,a_{8}=15\]
Evaluate \[\sum_{i=1}^{8}a _{8}\]

Answer 2

Just add all eight terms.

Answer 3

That's it O.o