indefinite-integration

Question: $\int_{{}}^{{}}{\frac{dx}{(x+1)(x+2)}=}$

1) $\log \frac{x+2}{x+1}+c$

2) $\log (x+1)+\log (x+2)+c$

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

4) None of these

Solution:

Explanation: No Explanation

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