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- $ \\\frac{{{x^2}}}{2}.{e^{{x^2}}} + C$.
- $ \\\frac{{{x^2}}}{2}.{e^{{x^2}}} + \\\frac{{{e^{{x^2}}}}}{2} + C$.
- $ \\\frac{{{x^2}}}{2}.{e^{{x^2}}} - \\\frac{{{e^{{x^2}}}}}{2} + C$.
- $ \\\frac{{{x^4}}}{4}.{e^{{x^2}}} + C$.