disazngurll disazngurll
  • 03-05-2020
  • Mathematics
contestada

write a formula to find the nth term of a geometric sequence -1/3,1/2,-3/4,9/8​

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devishri1977
devishri1977 devishri1977
  • 03-05-2020

Answer:

Step-by-step explanation:

first term a = -1/3

Ratio r = 1/2÷ (-1/3) = 1/2 * (-3/1) =  -3/2

nth term = ar^(n-1)

=(-1/3)*(-3/2)^(n-1)

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