indefinite-integration

Question: $\int_{{}}^{{}}{\frac{\log x\ dx}{{{x}^{3}}}=}$

1) $\frac{1}{4{{x}^{2}}}(2\log x-1)+c$

2) $-\frac{1}{4{{x}^{2}}}(2\log x+1)+c$

3) $\frac{1}{4{{x}^{2}}}(2\log x+1)+c$

4) $\frac{1}{4{{x}^{2}}}(1-2\log x)+c$

Solution:

Explanation: No Explanation

Integration by parts

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