Q1
[latex]\int{4{{x}^{3}}}{{({{x}^{4}}+7)}^{4}}\text{ d}x[/latex]
Q2
[latex]\int{\frac{x+2}{{{x}^{2}}+4x+6}}\text{ d}x[/latex]
Q3
[latex]\int{x{{e}^{{{x}^{2}}+1}}}\text{ d}x[/latex]
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