Question

f(1) = 2 and f(2) = 4, f(n) = f(1) + f(2) + f(n - 1), for n > 2.

f(5) = ______

Answer 1

someone help me i need help big time plz

Answer 2

okay so
f(5)=f(1) + f(2) + f(5- 1)

Answer 3

we need to know what f(4) is in there right

Answer 4

f(5)=f(1)+f(2)+f(4)
f(4)=f(1)+f(2)+f(3)
f(3)=f(1)+f(2)+f(2)<-- now this we know

Answer 5

so work from bottom to up... do you get it?