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多元表征意义下例谈一题多解的思路 被引量:1

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摘要 关于数学问题的解决,表征的质量将直接影响问题解决的难易程度,甚至是问题能否解决的关键。数学问题的多元表征不仅是数学本身的需要,也是数学问题解决的需要。文[l]有这样一道例题:已知x2+y2=1,a2+b2=1,求证:|ax+by|≤1.
出处 《基础教育课程》 2015年第8期11-12,37,共3页
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