# How do you write a rule for the nth term of the geometric term and then find #a_6# given #r=-1/2, a_3=8#?

##### 2 Answers

Jun 14, 2017

#### Explanation:

Rule of finding n th term of G.P is

are 1st term, common ratio and required term respectively.

Jun 14, 2017

#### Explanation:

In the **Usual Notation** for **Geometric Sequence,**

we are given,

Knowing that,