indefinite-integration

Question: $\int_{{}}^{{}}{\frac{x-2}{{{x}^{2}}-4x+3}dx=}$

1) $\log \sqrt{{{x}^{2}}-4x+3}+c$

2) $x\log (x-3)-2\log (x-2)+c$

3) $\log [(x-3)(x-1)]$

4) None of these

Solution:

Explanation: No Explanation

Integration by substitution

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