Question

please could someone help to find the closed form of sequence 2.3, 1.6, 0.9, 0.2

Answer 1

i think you mean what is the formula for the nth term right?

Answer 2

a(n) =

Answer 3

a1 = 2.3 n=1
a2 = 1.6 n=2
a3 = 0.9 n =3
a4 = 0.2 n = 4

we need to relate n to these numbers

subtraction is involved
a1 = 3.0 - 7(0.1)
a2 = 3.0 - 7(0.2) etc

but we need to involve n = 1, 2 etc

a(n) = 0.1[(30 - 7(n)]

- this is the closed form

Answer 4

thank you that make sense now

Answer 5

your welcome