5.4.1 正弦函数、余弦函数的图像 课件-2023-2024学年高一上学期数学人教A版（2019）必修第一册

5.4.1 必修第一册 正弦余弦函... text has been truncated due to evaluation version limitation. 00 简谐运动 物理中把简... text has been truncated due to evaluation version limitation. 沙漏单摆实... text has been truncated due to evaluation version limitation. 01 正弦函数的... text has been truncated due to evaluation version limitation. 【思考】sinα, cosα, tanα的几何意义是什么? sin=yB cos=xB tan=yC 关键：由单位圆中... text has been truncated due to evaluation version limitation.P，以xp为横坐标，yp为纵坐标画点. 问题：如何作出正... text has been truncated due to evaluation version limitation. 01 正弦函数的... text has been truncated due to evaluation version limitation. 连线：用光... text has been truncated due to evaluation version limitation. 将这些点连... text has been truncated due to evaluation version limitation. 若把x轴上从0到2π这一段分成12等份，使x0的值分别为 01 正弦函数的... text has been truncated due to evaluation version limitation. 当x0在区间[0,2π]上取到足够... text has been truncated due to evaluation version limitation. 画出足够多... text has been truncated due to evaluation version limitation. 可得到比较... text has been truncated due to evaluation version limitation.y=sinx, x∈[0,2π] x sinx 0 ... text has been truncated due to evaluation version limitation. ... text has been truncated due to evaluation version limitation.  0 1 0 -1 0 思考：作正... text has been truncated due to evaluation version limitation.y=sinx ，x∈[0, ... text has been truncated due to evaluation version limitation.π]的图象时，... text has been truncated due to evaluation version limitation.13个点，但其... text has been truncated due to evaluation version limitation. 01 正弦函数的... text has been truncated due to evaluation version limitation. 五个关键点 （五点作图... text has been truncated due to evaluation version limitation. 与x轴的交点 图象最高点 图象最低点 - - -1 1 - -1 上面就是函... text has been truncated due to evaluation version limitation.y=sinx... text has been truncated due to evaluation version limitat