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by AdamH12113
1346 days ago
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This will take up some space in your home, but there are a ton of used textbooks on Amazon and eBay. The older ones that aren't used anymore are only a few dollars each. The books themselves may only have answers to the odd-numbered questions, but that's still a lot of questions. (Learning how to check your own work is also a good exercise, but if you need something guaranteed to be reliable, you can plug a lot of problems straight into Wolfram Alpha or even a good graphing calculator.) |
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