It is known that f (x) = ax LNX, X belongs to (0, e], G (x) = LNX / x, where e is a natural number and a belongs to R (1) The monotonicity and extremum of a = 1, f (x) are discussed (2) Verification: under the condition of (1), f (x) > G (x) + 1 / 2 (3) If there is a real number a, the minimum value of F (x) is 3. If there is, the value of a can be obtained. If not, the reason is given

It is known that f (x) = ax LNX, X belongs to (0, e], G (x) = LNX / x, where e is a natural number and a belongs to R (1) The monotonicity and extremum of a = 1, f (x) are discussed (2) Verification: under the condition of (1), f (x) > G (x) + 1 / 2 (3) If there is a real number a, the minimum value of F (x) is 3. If there is, the value of a can be obtained. If not, the reason is given

f′(x)=a-1/x=(ax-1)/x
(1) When a = 1, f ′ (x) = (x-1) / X
Let f ′ (x) > 0
one