## Precalculus (6th Edition) Blitzer

$a_1=3,a_2=10, a_3=17; a_4=24$
The general formula to find the nth term of a Geometric sequence is given as: $a_{n}=a_1r^{n-1}$ In order to calculate the General formula of a Geometric sequence we will multiply the first term $a_1$ by the product of the common ratio with itself one unit less then a Geometric sequence. In order to calculate the first $4$ terms of the sequence we will have to plug $n=1,2,3,4$ into the given equation. So, we get $a_1=3,a_2=10, a_3=17; a_4=24$