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1. What is the recursive rule for the geometric sequence 10, −80, 640, −5120, …?

 

 

2. The explicit rule for a sequence is given: an = 1/2(4/3)^(n − 1)

What is the recursive rule for the geometric sequence?

 

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Thank you to anyone who helps!

Jaleco  Mar 16, 2018
 #1
avatar+86889 
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1.   10  -80    640    -5120

 

an  = 10 (-8)n-1

 

 

 

2.  (1/2)(4/3) n-1

 

 

a1  = (1/2),  an   = (4/3)an-1

 

 

cool cool cool

CPhill  Mar 16, 2018

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