Answer:
[tex]\boxed{\bold{a_n = a_{n-1} -0.8}}[/tex]
Explanation:
Sequence: 1.2, 0.4, -0.4, – 1.2, -2,...
See that with every next term, the integers are decreasing by 0.8
- So, common difference (d) = -0.8
recursive formula : [tex]\sf a_n = a_{n-1} +d[/tex]
[tex]\bold a_1 = 1.2,[/tex] [tex]\sf a_n = a_{n-1} + (-0.8)[/tex]
