please help me on how to solve this question

For a geometric progression,the first term is 6 and the sum of the 3 terms is 126.Find

a)the possible values of the common ratio

b)the 6th term of the geometric progression.

Printable View

- Dec 23rd 2009, 04:31 AMmastermin346Progressions
please help me on how to solve this question

For a geometric progression,the first term is 6 and the sum of the 3 terms is 126.Find

a)the possible values of the common ratio

b)the 6th term of the geometric progression. - Dec 23rd 2009, 04:42 AMI-Think
G.P.:

First term:6

Hence

I assume you mean 1st 3 terms

Solve this quadratic equation for your answer

Part b

6th term:

With value of a and r, insert for answer - Dec 23rd 2009, 04:44 AMskeeter
- Dec 23rd 2009, 04:46 AMgalactusQuote:

For a geometric progression,the first term is 6 and the sum of the 3 terms is 126.Find

Quote:

a)the possible values of the common ratio

So, the sum of the first 3 terms is given as and the first term is

Solve for r.

Quote:

b)the 6th term of the geometric progression.