3 years ago

PLS HELP!!!!!!!!!!!!!Write the recursive rule for the sequence: 5, -10, 20, -40, 80

Mathematics

1 answer:

earnstyle [38]3 years ago

6 0

Answer:

<u>We observe that this is a GP with:</u>

the first term t₁ = 5
common ratio r = -2

tₙ = t₁rⁿ⁻¹
tₙ = 5(-2)ⁿ⁻¹

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