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fond-2x-1-x-2-dx-




Question Number 92143 by hore last updated on 05/May/20
fondāˆ«((2x)/(1+x^2 ))dx
$${fond}\int\frac{\mathrm{2}{x}}{\mathrm{1}+{x}^{\mathrm{2}} }{dx} \\ $$
Commented by Prithwish Sen 1 last updated on 05/May/20
ln(1+x^2 ) +c   c= const.
$$\mathrm{ln}\left(\mathrm{1}+\mathrm{x}^{\mathrm{2}} \right)\:+\mathrm{c}\:\:\:\mathrm{c}=\:\mathrm{const}. \\ $$

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