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高中数学引入了导数之后,相应的数学方法和工具更加丰富,特别是运用导数研究函数的性态,成为新课程高考命题的热点之一,主要涉及的问题有切线问题、单调
After the introduction of derivatives in high school mathematics, the corresponding mathematics methods and tools are more plentiful. In particular, the use of derivatives to study the behavior of functions has become one of the hot topics of the new curriculum entrance examination proposition. The main problems involved are tangent problems and monotony.