Answer:
D
Explanation:
Substitute n = 1, 2, 3, 4, 5 into the explicit formula
a₁ = = 1
a₂ = = - 2
a₃ = = 4
a₄ = = - 8
a₅ = = 16
The first 5 terms are 1, - 2, 4, - 8, 16
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