Evaluate: \(\int x\log x\,dx\)
Q.11 Evaluate: \(\int x\log x\,dx\)
Q.11 Evaluate: \(\int x\log x\,dx\)
Best answer
Answer: \(\frac{x^2}{2}\log x - \frac{x^2}{4} + c\)
Integrating by parts with \(u = \log x\), \(v = x\):
\(\int x\log x\,dx = \log x\cdot\frac{x^2}{2} - \int\frac{1}{x}\cdot\frac{x^2}{2}\,dx = \frac{x^2}{2}\log x - \frac{1}{2}\int x\,dx = \frac{x^2}{2}\log x - \frac{x^2}{4} + c\).
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