54.5k views
3 votes
Find the 12th term
1,4, 16, 64,
...

User Drobs
by
5.9k points

1 Answer

6 votes

Explanation:

for getting to next term you multiple 4, so it's an exponential sequence

a×r^n-1

1×4^n-1

sequence: 4^n-1

12th term: 4^12-1

=4^11

=4194304

hope it helps!!

User Dorvalla
by
6.3k points