Question 1140065
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I'd say that the question is not relevant to the given part, as well as the given part is not relevant to the question.



My impression is that two different parts of two different problems are mixed in this post.



Or, possible, the person who invented this text, forgot the beginning, wheh formulated his question.



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My general point is that the visitors, who came to this forum, have the need in general education even more than in Math.