Question

How do you find the first five terms given `a_1=4` and `a_(n+1)=3a_n-6`?

Answer 1

`{4,6,12,30,84}`

Explanation:

`a_(n+1)=3a_n-6`

`a_1=4`

`a_2=3a_1-6=3xx4-6=12-6=6`

`a_3=3a_2-6=3xx6-6=18-6=12`

`a_4=3a_3-6=3xx12-6=36-6=30`

`a_5=3xxa_4-6=3xx30-6=90-6=84`