Question

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

Answer 1

`f(4)=1`

Explanation:

if
`f(1)=1`, and
`f(n-1)=f(n)`, then
`f(2)=f(1)=1`.

we can continue this until
`f(4).`

`f(3)=f(2)=1`

`f(4)=f(3)=1`

`\therefore f(4)=1`