Question

If f(1)-3 and f(n)=f(n-1) +4 then find the value of f(5)

Answer 1

f(1) = 3

f(2) = -2 * 3 + 1 = -5

f(3) = -2 * -5 + 1 = 11

f(4) = -2 * 11 + 1 = -21

f(5) = -2 * -21 + 1 = 43

Explanation: