I.3.1.66 Indefinite Integrals

Condition: find vague integrals: a) \ (\ int \ frac {x^{3} +2 x^{2}+x-2} {\ left (x^{2} +1 \ risht) (x-2)} d x \) b) \ (\ int e^{-x \ sin x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x d x \)