高一数学教案：§..小结与复习(二)、(三)

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1、高一数学教案：§4.12.2小结与复习(二)、(三).doc§4.12.2小结与复习(二)、(三)教学目标(一)知识目标1.任意角的概念、弧度制、任意角的三角函数的概念、同角三角函数间的关系、诱导公式；2.两角和与差的三角函数、二倍角的三角函数；3.三角函数的图象和性质、已知三角函数值求角.(二)能力目标1.理解任意角的概念、弧度的意义；能正确地进行弧度与角度的换算；2.掌握任意角的正弦、余弦、正切的定义，并会利用与单位圆有关的三角函数线表示正弦、余弦和正切；了解任意角的余切、正割、余割的定义；掌握同角三角函数的基本关系式；掌握正弦、余弦的诱导公式；3.掌握两角和与两角差的正弦、余弦、正切

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