Posted by **NJ** on Wednesday, April 18, 2007 at 7:26pm.

How do I write equations for geometric sequences?

example question:

1, 3/2, 9/4, 27/8

an= a(n-1) * r^n where r is the value of dividing one term by the term before.

For instance, in the above, ao= 1,

r= a3/a2= (27/8)/(9/4)= 3/2

a1= 1*3/2

a3= 1*(3/2)^3= 27/8

Thank you, Mr. Pursley

## Answer This Question

## Related Questions

- algebra - Consider all 3-term geometric sequences with first term 1 and with ...
- Algebra - I am so lost on these problems. Write a geometric sequence that starts...
- maths - The fifth term of an arithmetic sequence is 23 and the 12th term is 72. ...
- Maths - Consider all 3-term geometric sequences with first term 1 and with ...
- Math - Consider all 3-term geometric sequences with first term 1 and with common...
- maths - The fifth term of an arithmetic sequence is 23 and 12th term is 72. And ...
- geometric sequences - given the geometric sequences:9 90/17, 900/289 find an ...
- math - The 3rd term of a geometric progression is nine times the first term.if ...
- math - The third term of a geometric progressiom is nine times the first term.if...
- math30 - Sequences 1)A sequence has a first term of 24 and every other term is ...

More Related Questions