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∫ x √ 1 x 2 dx
∫ 1 √ x 2 ± a 2 dx ln x+ √ x 2 ± a 2 c
∫ x -12 *e -x dx
∫ 1 1-x 2 dx
∫1 x 2+a 2 dx
∫ x+2 dx
∫ 1+x dx
∫x√ 1-x 2 dx
∫x 1+e x dx
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