I feel like I might be missing something here, but how is the deriviative of ln(x) equal to 1/x? The graph of ln(x) only has valid x values to the right of the x axis. The graph for 1/x has valid values for x for all real numbers except for 0. Am I to deduce that functions and their derivatives do not always necessarily occupy the same domain? If so are the values to the left of the y axis of any significance or should they just be ignored?(adsbygoogle = window.adsbygoogle || []).push({});

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# I Question about d/dx [ln(x)]

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