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Question

` ∫  log x / x  dx `
 
 
 
Sum

Solution

\[\int\frac{\log x}{x}dx\]

\[Let, \log x = t\]

\[ \Rightarrow \frac{1}{x} = \frac{dt}{dx}\]

\[Now, \int\frac{\log x}{x}dx\]

 = ∫ t . dt

\[ = \frac{t^2}{2} + C\]

\[ = \frac{\left( \log x \right)^2}{2} + C\]

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Chapter 19: Indefinite Integrals - Exercise 19.09 [Page 57]

APPEARS IN

RD Sharma Mathematics [English] Class 12
Chapter 19 Indefinite Integrals
Exercise 19.09 | Q 1 | Page 57

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