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| Homework 7Details| Points | Problem |
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| 4 | 3.17 | You can assume f(x) is invertible.
| | 6 | 3.18 | Since we did not spend a lot of time proving things about 1-1 and onto, you should know that the proofs in this case are really simple, so do not overthink it. Carefully reread the definitions, and the information provided in the problem makes it pretty straightforward to prove or disprove each thing. |
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