Question

what is the answer of logx after. 4 time derivative?

Answer 1

The answer is after four time derivative is
$- 6 {x}^{ - 4} or \frac{ - 6}{ {x}^{4} }$

Answer 2

D/dx logx= 1/x D/dx 1/x= -x^-2 D/dx -x^-2= 2x^-3 D/dx 2x^-3= -6x^-4