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## Main Question or Discussion Point

Who can slove this one:

f(x) = [ln(x) {{1-e^(3x)}^3}] / [{1+e^(3x)}^3x]

f '(x) = ¿¿¿¿??????? :surprised :surprised :surprised :surprised

f(x) = [ln(x) {{1-e^(3x)}^3}] / [{1+e^(3x)}^3x]

f '(x) = ¿¿¿¿??????? :surprised :surprised :surprised :surprised