如图,AB是圆心O的直径.AC为弦,D是弧BC的中点,过点D做EF垂直AC的延长线于E,交Ac的延长线于E交AB的延长线于点F(1)这个我懂……(2)若sin角F=1/3,AE=4.求○O的半径和AC的长.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 21:45:59
![如图,AB是圆心O的直径.AC为弦,D是弧BC的中点,过点D做EF垂直AC的延长线于E,交Ac的延长线于E交AB的延长线于点F(1)这个我懂……(2)若sin角F=1/3,AE=4.求○O的半径和AC的长.](/uploads/image/z/5445809-17-9.jpg?t=%E5%A6%82%E5%9B%BE%2CAB%E6%98%AF%E5%9C%86%E5%BF%83O%E7%9A%84%E7%9B%B4%E5%BE%84.AC%E4%B8%BA%E5%BC%A6%2CD%E6%98%AF%E5%BC%A7BC%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E8%BF%87%E7%82%B9D%E5%81%9AEF%E5%9E%82%E7%9B%B4AC%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%8EE%2C%E4%BA%A4Ac%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%8EE%E4%BA%A4AB%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%8E%E7%82%B9F%EF%BC%881%29%E8%BF%99%E4%B8%AA%E6%88%91%E6%87%82%E2%80%A6%E2%80%A6%EF%BC%882%EF%BC%89%E8%8B%A5sin%E8%A7%92F%3D1%2F3%2CAE%3D4.%E6%B1%82%E2%97%8BO%E7%9A%84%E5%8D%8A%E5%BE%84%E5%92%8CAC%E7%9A%84%E9%95%BF.)
xS]O`+dH[Z(`xM
OXAm
%b质sQ787G9D;mrL%ysXv:,Z[;1/ʙ\YYC?֏ 3'ⅿc,^9-BZWFf5o־0u_sB)[;ƶYjbp?pzrOvy)?á f[We l ,s]sE̴Oy"h" _>\v%,Φ2s<&Kidf*e{K=2!