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cum se rezolva derivata functiei  fx=1+lnx supra 1-lnx

Răspuns :

[tex] \frac{1+lnx}{1-lnx} = \frac{(1+lnx)'(1-lnx)-(1-lnx)'(1+lnx)}{1-lnx)^2} = \\ \\ \frac{ \frac{1-lnx}{x}+ \frac{1+lnx}{x} }{(1-lnx)^2} = \frac{ \frac{2}{x} }{(1-lnx)^2} = \frac{2}{x(1-lnx)^2} [/tex]
mai verifica si tu inca o data.