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Exercises 11.9: Integrals

WRITING

1.  $\int x^{3}d\mathbf{x}$

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2.  $\int (x^2+1)d\mathbf{x}$

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3.  ${\displaystyle \underset{0}{\overset{4}{\int }}\sqrt{x}\mathrm{dx}}$

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4.  ${\displaystyle \underset{-3}{\overset{-1}{\int }}\frac{2}{x}\mathrm{dx}}$

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5.  ${\int }_x^2\sec t\mathrm{dt}$

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6.  $2{\int }_x^2\sec t\mathrm{dt}$

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7.  ${\int }_{-1}^1{\int }_0^{1}f(x,y)\mathrm{dydx}$

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READING

8.  

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12.  

PROOFREADING

13.  $\int 2x^{3}d\mathbf{x}$

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14.  ${\displaystyle \underset{-1}{\overset{2}{\int }}3x^2\mathrm{dx}}$

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15.  ${\int }_{-\infty }^3(x+1)\mathrm{dx}$

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