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Today's calculation of Integral 495

Source: 2009 Okayama Prefectural University entrance exam

October 9, 2009
calculusintegrationtrigonometrylogarithmscalculus computations

Problem Statement

Evaluate the following definite integrals. (1) \int_0^{\frac {1}{2}} \frac {x^2}{\sqrt {1 \minus{} x^2}}\ dx (2) \int_0^1 \frac {1 \minus{} x}{(1 \plus{} x^2)^2}\ dx (3) \int_{ \minus{} 1}^7 \frac {dx}{1 \plus{} \sqrt [3]{1 \plus{} x}}