Question

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

Answer 1

`f(1) = 1 \\ f(2) = - 3f(1) = - 3 \\ f(3) = - 3f(2) = + 9 \\ f(4) = - 3f(3) = - 27 \\ f(5) = - 3f(4) = + 81`

Answer 2

f(5)=-12

Explanation:

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

f(5)=-3*(4)

f(5)=-12

Hope this helps