144 / [ln (3.5 / 0.22)]

144 / [ln (3.5 / 0.22)]

fifty-two point zero four

Draw f (x) = ln ((1 / | x |) - E) without graph calculator
I don't remember the original question. I can't do it only with pictures

Constraint 1 / | x | - E > 0, - 1 / E

Proof: when x ＞ 0, (1 + x) ln (1 + x) ＞ x, a kind-hearted person can help to solve it

The function f (x) = (x + 1) ㏑ (x + 1) - X. (x ≥ 0) is derived to f '(x) = ㏑ (x + 1) ∵ x ≥ 0. = = = > x + 1 ≥ 1. = = = > ㏑ (x + 1) ≥ 0. That is to say, f' (x) ≥ 0. On [0, + ∞), f (x) increases. F (x) > F (0) = 0. (x > 0); (1 + x) ㏑ (1 + x) > X. (x > 0)