Question

rtghjk

Answer 1

so

f(3) = f(2) + f(1) or f(3) = 2 + 3

it looks a lot like part of the fibonacci number sequence

f(4) = f(3) + f(2)

f(5) = f(4) + f(3)

just keep the pattern going for the number of terms you need... using the previous answers

Answer 2

nope...

f(3) = f(2) + f(1)
= 3 + 2

so the 3rd term is 5

Answer 3

so the 4th term is

f(4) = f(3) + f(2)
= 5 + 3

Answer 4

and its not A either

Answer 5

that makes sense