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Mathematics, 30.11.2020 15:10 Serenitybella

Which function could be used to represent the sequence 8, 20, 50, 125, 312.5., given that a, = 8?
(1) a, = 4,- 1 ta
(3) 4, = 4, + 1.5(, -1)
(2) a. = 2.5(
4-1) (4) 4 = (a), -1)


Which function could be used to represent the sequence 8, 20, 50,

125, 312.5...., given that a, =

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Answers: 2

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