Let (x) = ln x. (a) Compute (x),(x),(x), (4) (x), and (5) (x). (b) Guess

Let ƒ(x) = ln x.
(a) Compute ƒ′(x),ƒ′′(x),ƒ′′′(x), ƒ⁽⁴⁾(x), and ƒ⁽⁵⁾(x).
(b) Guess a formula for ƒ⁽ⁿ⁾(x), where n is any positive integer.