Quotientenregel: [ u/v ] ' = (u' • v - u • v' ] / v2
[ x2 / ln(x3) ] ' = [ 2x • ln(x3) - x2 • 3/x ] / (ln(x3)2
= [ 2x • ln(x3) - 3x ] / (ln(x3)2
= (2x) / ln(x3) - (3x) / (ln(x3)2
= 2/3 • x / ln(x) - 1/3 • x / ln(x)2
= 1/3 • x • [ 2 / ln(x) - 1/ ln(x)2 ]
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Oder mit Logaritmensatz: ln(x3) = 3 • ln(x)
[ x2 / ln(x3) ] ' = [ 1/3 • x2 / ln(x) ] '
= 1/3 • [ (2x • ln(x) - x2 • 1/x ) / ln(x)2
= 1/3 • x • [ 2 / ln(x) - 1/ ln(x)2 ]