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Gennadij [26K]
3 years ago
9

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

<u>The nth term is:</u>

  • tₙ = t₁rⁿ⁻¹
  • tₙ = 5(-2)ⁿ⁻¹
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Answer:

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