beautifulhope20 beautifulhope20

18-02-2017
Mathematics

Answered

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

B1/8

C1/16

D1/12

Thank you

Verified Answer :

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

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