SOLUTION: Give the first four terms of the geometric sequence for which a1=7 and r=5

Algebra ->  Sequences-and-series -> SOLUTION: Give the first four terms of the geometric sequence for which a1=7 and r=5      Log On


   

Question 862875: Give the first four terms of the geometric sequence for which a1=7 and r=5
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Identify the general term.
7%2A5%5E%28n-1%29 and the index is n.

a%5B1%5D=7
a%5B2%5D=35
a%5B3%5D=175
a%5B4%5D=7%2A5%5E%284-1%29