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《中学生数学》2015年6月(上)刊发的《一题多解案例》一文给出了一道题的4种解法,读后受益匪浅.继承与发展(创新)是最好的学习,本文在原文解法的基础上再给出4种解法,以飨读者.
The article entitled “Multi-case Solutions to One Problem” published by the “Secondary School Mathematics” in June 2015 (above) gives four solutions to a problem that will benefit greatly from reading. Inheritance and Development (Innovation) is the best way to learn, This article gives four kinds of solutions on the basis of the original solution to readers.