Find the Sum of the Sequence $$\sum _ { k = 1 } ^ { 4 } ( - 1 ) ^ { k \cdot - 8 k }$$

question 177

Multiple Choice

Find the sum of the sequence.
- $$\sum _ { k = 1 } ^ { 4 } ( - 1 ) ^ { k \cdot - 8 k }$$

• A) -16
• B) -80
• C) 80
• D) 4,096

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