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How do you know whether A is greater than or equal to E or less than or equal to E? (Ignore the previous 1)
The function f (x) =1/x+lnx (x >; 0)

f'(x)=- 1/x? + 1/x=(x- 1)/x?

When 0

Right side of inequality =f(a) left side =f(e)

Therefore, if a> 1 is combined with this inequality, there must be a ≤ e.

Of course, if 0