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Integral and comparison with pi/6

1675AdeptCalculus

Olimpiada Republicană la Matematică

a) $$ \int_{1}^{2}\left(\frac{1}{x}-\arcsin \frac{1}{x}\right) d x $$ b) Comparați numerele: $\frac{\pi}{6}$ și $\ln \frac{2+\sqrt{3}}{2}$.
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