Question

Explicit rule 26,18,10,2

Answer 1

`Answer:\ a_n=34-8n`

Explanation:

26, 18, 10, 2

18-26=-8

10-18=-8

2-10=-8

This is an arithmetic progression:

`a_n=a_1+(n-1)d,\\a_1=26\ \ \ \ \ d=-8\ \ \ \ n=1,\ 2,\ 3,\ 4\\a_n=26+(n-1)(-8)\\a_n=26+(n)(-8)+(-1)(-8)\\a_n=26-8n+8\\a_n=34-8n`