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技巧解读解答数学选择题的常用方法有很多种,学生在平时做题时要尽量避免“小题大做”.特例法就是利用数学问题中的普遍与特殊的关系来简化解题过程的一种方法,是一种小题小做、省时省力的重要策略.特例法是从题干(或选项)出发,通过选取适合条件的特殊情形来代替普遍条件,将问题特殊化并得出特殊结论来进行判断.这样往往能简缩思维过程,降低答题难度,从而迅速得解.姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨姨《高考数学选择题特例法的解题技巧》解答数学选择题需要一些技巧,其中运用特例来解答某些试题会有非常好的效果.特例法主要运于可变因素的选择题,如可变的数量、函数表达式.在解题的过程中,学生只需要选择符合条件的特例验证,便可直接得出答案或排除不正确的答案.(请注册登录gaokao.hnjy.com.cn)注册登录《高中生》·高考网,更多有关特例法的应用等你来掌握——
Interpretation of the skills to solve mathematical problems There are many commonly used methods, students usually do when the problem should try to avoid “special problems ” is a special case method is the use of mathematical problems in general and special relations to simplify the process of solving a problem , Is an important strategy to save time and labor.A special case method is to start from the title stem (or option), by selecting the special case of suitable conditions instead of universal conditions, specialization of the problem and draw special conclusions to To judge .This often can reduce the thinking process, reduce the difficulty of answering, and quickly understand. Aunty Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Aunt Mathematical choice problem special case of the problem-solving skills “To answer the mathematical choice of questions requires some skills, including the use of special cases to answer certain questions will have very good results.Exception cases mainly in variable choice of questions, such as the variable number , Function expression. In the process of solving problems, students only need to select eligible special case validation, you can directly answer or exclude the incorrect answer. (Please register log gaokao.hnjy.com.cn) Register Login ” High school Health "· entrance network, more about the application of exception law waiting for you to master -