FormerLifeguard FormerLifeguard

23-07-2019
Mathematics

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Use the information given to identify the a9 term of the geometric sequence: a2 = 3, r = −1

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Banabanana Banabanana

23-07-2019

Answer:

-3

Step-by-step explanation:

a₁ = a₂/r = 3/(-1)=-3

a₉ = a₁ · r⁸ = -3 · (-1)⁸ = -3 · 1 = -3

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