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DW

6.

DW

7.

$\int \frac{{x}^{6}}{{u}^{9}}\text{d}x=\frac{1}{7}\frac{{x}^{7}}{a{u}^{7}}$

DW

8.

$\int \frac{{x}^{6}\text{d}x}{{u}^{2n+1}}=\frac{1}{{a}^{n-3}}\sum _{k=0}^{n-4}\frac{{\left(-1\right)}^{k}}{2k+7}\left(\begin{array}{c}n-4\hfill \\ k\hfill \end{array}\right)\frac{{c}^{k}{x}^{2k+7}}{{u}^{2k+7}}$

9.

$\int \frac{{x}^{7}\text{d}x}{{x}^{2n+1}}=-\frac{1}{\left(2n-7\right){c}^{4}{u}^{2n-7}}+\frac{3a}{\left(2n-5\right){c}^{4}{u}^{2n-5}}-\frac{3{a}^{2}}{\left(2n-3\right){c}^{4}{u}^{2n-3}}+\frac{{a}^{3}}{\left(2n-1\right){c}^{4}{u}^{2n-1}}$

DW

2.275

1.

DW

2.

$\int \frac{{u}^{3}}{x}\text{d}x=\frac{{u}^{3}}{3}+au+{a}^{2}{I}_{2}$

DW

3. ...

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