论文部分内容阅读
用消元法(代入消元、加减消元)解二元(或三元)一次方程组,由于基本思路和一般步骤较明确,同学们不难掌握,但在具体解题时,不一定都要严格遵循固定模式,而应根据题目的结构特点,灵活运用解题技巧,合理安排解题步骤,以开拓思路、活跃思维、培养创新能力。下面举几例说
Using the elimination method (into elimination, addition and subtraction) to solve binary (or ternary) equations, because the basic ideas and general steps are more clear, the students can grasp, but in the specific problem solving, not necessarily We must strictly follow the fixed model, but should be based on the structural characteristics of the title, the flexibility of the use of problem-solving skills, reasonable arrangements for problem-solving steps to develop ideas, active thinking, and foster innovation. Here are some examples