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

Respuesta :

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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