2025年教学资料:4.5 诱导公式(第1课时)(同步课件)-【中职专用】2023-2024学年高一数学同步精品课堂(高教版2021·基础模块上册)
第4章三角函数4.5诱导公式(第1课时)探索新知情境导入典例剖析巩固练习归纳总结布置作业在4.3节,为求得任意角的三角函数值,我们依据三角函数的定义,在角α的终边上取一点P,通过点P的坐标求出任意角α的三角函数值.是否还有其他方法呢?我们可以通过诱导公式将任意角的三角函数转换为锐角的三角函数求解.探索新知情境导入典例剖析巩固练习归纳总结布置作业角分别与、、、角的正弦、余弦和正切之间有什么关系?探索新知情境导入典例剖析巩固练习归纳总结布置作业角与是终边相同的角,而终边相同的角的同一三角函数的值相等,因此、、探索新知情境导入典例剖析巩固练习归纳总结布置作业角与角的终边关于x轴对称,由三角函数的单位...
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