beautifulhope20
beautifulhope20 beautifulhope20
  • 18-02-2017
  • Mathematics
contestada

A geometric sequence has these properties: a^1=4

a^n= 1/2a^n-1

What is term a7 of this sequence?

A)1/14

B) 1/8

C) 1/16

D) 1/12

Thank you 

Respuesta :

texaschic101
texaschic101 texaschic101
  • 18-02-2017
a7 = 4 * 1/2^(7 - 1)
a7 = 4 * (1/2)^6
a7 = 4 * 1/64
a7 = 4/64 reduces to 1/16
Answer Link

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