The fibonacci sequence is f(n) = f(n-1) + f(n-2).

if f(8) = 21 and f(9) = 34, which of the following is true?

A

Step-by-step explanation:

The next number is found by adding the two previous numbers together.

Correct option is:

A. F(10)=55

Step-by-step explanation:

F(n) = F(n-1) + F(n-2)

If F(8) = 21 and F(9) = 34

F(10)=F(9)+F(8)

      =34+21

      =55

Since, F(10)=55

So, option A is correct and option D is incorrect

As we can see the terms are going to increase as we find the further terms since we are adding the previous 2 terms to get the next term so obviously 13 th term and 17 th term will be greater than 55.

So, option B and C are also incorrect.

Hence, Correct option is:

A. F(10)=55

i’m sorry but i don’t know sorry