【有图】Rt△ABC中,∠ACB=90°,AB=5,sin∠CAB=4/5……急Rt△ABC中,∠ACB=90°,AB=5,sin∠CAB=4/5,D是斜边AB上一点,过点作AE⊥CD,垂足为E,AE交直线BC于点F(1)当点F在边BC上时,设AD=x,BF=y,求y关于x的解析式(2)
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![【有图】Rt△ABC中,∠ACB=90°,AB=5,sin∠CAB=4/5……急Rt△ABC中,∠ACB=90°,AB=5,sin∠CAB=4/5,D是斜边AB上一点,过点作AE⊥CD,垂足为E,AE交直线BC于点F(1)当点F在边BC上时,设AD=x,BF=y,求y关于x的解析式(2)](/uploads/image/z/5033541-21-1.jpg?t=%E3%80%90%E6%9C%89%E5%9B%BE%E3%80%91Rt%E2%96%B3ABC%E4%B8%AD%2C%E2%88%A0ACB%3D90%C2%B0%2CAB%3D5%2Csin%E2%88%A0CAB%3D4%2F5%E2%80%A6%E2%80%A6%E6%80%A5Rt%E2%96%B3ABC%E4%B8%AD%2C%E2%88%A0ACB%3D90%C2%B0%2CAB%3D5%2Csin%E2%88%A0CAB%3D4%2F5%2CD%E6%98%AF%E6%96%9C%E8%BE%B9AB%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E8%BF%87%E7%82%B9%E4%BD%9CAE%E2%8A%A5CD%2C%E5%9E%82%E8%B6%B3%E4%B8%BAE%2CAE%E4%BA%A4%E7%9B%B4%E7%BA%BFBC%E4%BA%8E%E7%82%B9F%EF%BC%881%EF%BC%89%E5%BD%93%E7%82%B9F%E5%9C%A8%E8%BE%B9BC%E4%B8%8A%E6%97%B6%2C%E8%AE%BEAD%3Dx%2CBF%3Dy%2C%E6%B1%82y%E5%85%B3%E4%BA%8Ex%E7%9A%84%E8%A7%A3%E6%9E%90%E5%BC%8F%EF%BC%882%EF%BC%89)
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