indefinite-integration

Question: $\int_{{}}^{{}}{\frac{{{x}^{4}}+{{x}^{2}}+1}{{{x}^{2}}-x+1}\ dx=}$



1) $\frac{1}{3}{{x}^{3}}+\frac{1}{2}{{x}^{2}}+x+c$
2) $\frac{1}{3}{{x}^{3}}-\frac{1}{2}{{x}^{2}}+x+c$
3) $\frac{1}{3}{{x}^{3}}+\frac{1}{2}{{x}^{2}}-x+c$
4) None of these
Solution: Explanation: No Explanation
Fundamental integration

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