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JEE MATHEMATICS MCQ: INDEFINITE INTEGRATION

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Application +4 | -1
∫  ∣ x ∣  log⁡  ∣ x ∣  dx\int \,\,\left| {\,x\,} \right|\,\,\log \,\,\left| {\,x\,} \right|\,\,dx equals (x≠0)\left( {x \ne 0} \right)
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Correct option: D
12x  ∣ x ∣  log⁡   ∣ x ∣  −  14  x  ∣ x ∣  +  c\frac{1}{2}x\,\,\left| {\,x\,} \right|\,\,\log \,\,\,\left| {\,x\,} \right|\,\, - \,\,\frac{1}{4}\,\,x\,\,\left| {\,x\,} \right|\,\, + \,\,c
Option D (\frac{1}{2}x\,\left| {\,x\} \right|\,\log \,\,\left| {\,x\} \right|\, - \,\frac{1}{4}\,x\,\left| {\,x\} \right|\, + \,c\frac{1}{2}x\,\left| {\,x\} \right|\,\log \,\,\left| {\,x\} \right|\, - \,\frac{1}{4}\,x\,\left| {\,x\} \right|\, + \,c) is correct because it is the result of integrating |x|log|x| using integration by parts, considering both positive and negative cases for x.

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