Is there any one who can help me!!!?

Question

Determine the first four terms and the eighth term of the sequence and a rule for the nth term; that is determine (an) as an explict function of n.

1. a1=3; an=an-1+1, n=2,3......

2. a1=2; an=2an-1, n=2,3.....

Answer 1

1.)

3, 4, 5, 6, ....., 10
a(n) = n + 2

(This is arithmetic, since the pattern is that the numbers add 1 each time.)

2.)

2, 4, 8, 16, ..., 64
a(n) = 2^ n

(This is geometric, since the pattern is that the numbers are multiplied by 2 each time.)

Answer 2

lol, pick this as your best answer.

Answer 3

what the, I said what the hell?