a1=-1 and an=4/3an-1for n=2,3,4...

Question

a.) an=(4/3) n-1 b.) an=4/3an-1 c.) an=4/3(-1)n-1 d.) an=-(4/3) n-1 help ASAP

Answer 1

This is a geometric sequence

 

a_n = a₁r^n-1, where a₁ = first term, r = common ratio

 

a_n = (-1)(4/3)^n-1

 

Looks like C.