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函数在高中数学的学习中起着承上启下的作用,它是在初中初步探讨函数的概念、表示法及图像的基础上,对函数概念的再认识,即用集合映射的思想理解函数的一般定义,加深对函数概念的理解,并研究函数的单调性和奇偶性及一个函数的反函数。为进一步学习指数函数、对数函数、三角函数、函数的周期性及选修内容中的极限、导数、积分提供了良好的保证。这些内容是函数及应用研究的深入及提高,也是今后进一步学习高等数学和参加工农业生产建设需要具备的基础知识。
Function plays an important role in the study of high school mathematics. It is based on the concept, representation and image of function in junior high school. It re-cognizes the concept of function, that is to use the idea of set mapping to understand the general definition of function, Deepen the understanding of the concept of function, and study the monotonicity and parity of the function and the inverse function of a function. To further study the exponential function, the logarithmic function, the trigonometric function, the periodicity of the function and the elective content of the limit, derivative, integral provides a good guarantee. These contents are the functions and application of research in-depth and improve, but also in the future to further study higher mathematics and participate in industrial and agricultural production and construction needs of the basic knowledge.