Integral of a modulus |f(x)|: split where f(x) changes sign

1. A.
   $2\sqrt{2}+1$
2. B.
   $2(\sqrt{2}+1)$
3. C.
   $2(\sqrt{2}-1)$
4. D.
   $2\sqrt{2}-1$

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1. A.
   $\frac{13}{2}$
2. B.
   $\frac{15}{2}$
3. C.
   $\frac{17}{4}$
4. D.
   $\frac{17}{2}$

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1. A.
   $\frac{\pi}{4}$
2. B.
   $\frac{\pi}{2}$
3. C.
   $\pi$
4. D.
   $2\pi$

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1. A.
   $\frac{17}{3}$
2. B.
   $\frac{19}{3}$
3. C.
   19
4. D.
   17

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1. A.
   $\frac{1}{2}$
2. B.
   $\frac{1}{12}$
3. C.
   $\frac{1}{8}$
4. D.
   $\frac{1}{16}$

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1. A.
   $0$
2. B.
   $1$
3. C.
   $2$
4. D.
   $-1$

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1. A.
   $\dfrac{17}{4}$
2. B.
   $\dfrac{18}{3}$
3. C.
   $\dfrac{1}{25}$
4. D.
   $\dfrac{13}{2}$

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1. A.
   $\dfrac{13}{10}$
2. B.
   $\dfrac{9}{10}$
3. C.
   $\dfrac{3}{10}$
4. D.
   $\dfrac{17}{10}$

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1. A.
   $\dfrac{e^2 - 1}{2e}$
2. B.
   $\dfrac{2}{e}$
3. C.
   $2 - \dfrac{2}{e}$
4. D.
   $1 - \dfrac{1}{e}$

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