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在高中数学教学中,数列问题是整个高中数学的重点,同时也是教学的难点。具体体现在数列问题涉及的公式较多,公式的变换也比较复杂。此外,出题的模式多样化,做题的技巧也是多变的。因此,要学好数列问题,必须充分掌握每一种做题技巧,并能熟练运用。本文就“错位相减法”在高中数学数列问题中的应用做出几点阐述。
In high school mathematics teaching, the sequence of numbers is the focus of high school mathematics, but also teaching difficulties. Specifically reflected in the number of problems involved in more formulas, the transformation of the formula is also more complicated. In addition, the diversification of the mode of writing questions, the skills of doing the questions are varied. Therefore, to learn the sequence of questions, we must fully grasp every problem-solving skill and apply it skillfully. This article on “dislocation subtraction ” in the high school mathematics series of questions to make some elaboration.