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Question: polent on 22 ylim fx if and only if yo...

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polent on 2.2. y,-lim, f(x) if and only if yo lim xo .wMx)for each nl The proof is left to the reader (Problem 10), Limits along linesProve Proposition 2.2 in two different ways. [Hints: For one proof use the definition of limit directly and the inequality, for any vector h d: (h, ..., h), Take h = f(x)-Yo. For the other proof, write f-fle, + that f(x). ei = f(x).] +fne, and note

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