2 3, if 2( ) 2 3, if > 2 | x xf | x | x | x | |---|---|---|---| + ≤=  − 7. | | 3, if 3 ( ) 2 , if 3 < 3 6 2, if 3 x x | f | x | x | x | |---|---|---|---| x x / + ≤ − = − − <  + ≥ 8. | | , if 0( ) 0, if 0 | x xf | x | x | |---|---|---| x  ≠=   =

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| Exercise 5.1

Question 6

2 3, if 2( ) 2 3, if > 2 x xf x x x \leq=  - 7. | | 3, if 3 ( ) 2 , if 3 < 3 6 2, if 3 x x f x x x x x / + \leq - = - - <  + \geq 8., if 0( ) 0, if 0 x xf x x --- --- --- x  \neq=   =

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