Question

The following function defines a recursive sequence.

f(0) = -4

f(1) = 12

f(n) = -3•f(n -1) - 2•f(n - 2); for n > 1

Which of the following sequences is defined by this recursive function?

-4, 12, -28, 60, …

-4, -12, -28, -60, …

-4, 12, -18, 54, …

-4, 12, -18, -54, …

Answer 1

For question one are you trying to solve using f(0) and f(1) ?

Answer 2

Its is

-4,12,-28,60 ...

f(2) = -3(12) - 2(-4) =-28

f(3) = -3(-28) - 2(12) = 60

Hope this Helps :)

Answer 3

tHANK YOU @Schrodingers_Cat *FOLLOWS*

Answer 4

The ping feature doesn't work well at the moment Lena.

Answer 5

ah ok, post the url here?