Question

How to write the recursive definition of a sequence ?

Answer 1

It would wholly depend on the sequence you're given.

Answer 2

What they said^^^

Answer 3

what the sequence ?

Answer 4

arithmetic or geometric?

Answer 5

arithmetic i think give me a sec

Answer 6

a(n) = f(a(n-1), n-1)

Answer 7

is that the formula? can you explain?

Answer 8

5, 2, 39, 56...
I had not seen this when I gave you a generic answer.
Specifically, these are going up 17 , having started with 5
a(1) = 5
a(2) = 5+17 = a(1) + 17
a(3) = a(2) + 17

a(n) = a(n-1) + 17 recursive formula for a(n)

Answer 9

meant: 5, 22, 39, 56...

Answer 10

next one had a(1) = -2 and others increased by a constant value,
same principle as just discussed.

Answer 11

ohh okay i get ti now, thank you so much :D

Answer 12

You are very welcome. Glad to help.