In the recursive formula f(n) = f(n - 1) + 5, the value of the previous term is represented by ?? A) f(n) B) f(5) C) f(n + 5) D) f(n - 1)

1 Answer
Nov 4, 2017

Answer is (D).

Explanation:

f(n)=f(n-1)+5

indicates that n^(th) term is greater than the (n-1)^(th) term by 5, hence it is an arithmetic sequence with common difference 5

It is apparent that the previous term is represented bt f(n-1).

Hence, answer is (D).