I am having a really difficult time doing these proofs and want to know how i need to confront them and if there is a good strategy to solving these.(adsbygoogle = window.adsbygoogle || []).push({});

I am in first year university. I understood the problem the prof went over but when i try to do on my own, I am just not able to prove them. I don't know how to even start with some of them

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# Help with spivak calculus

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