一道很难很难的初三数学题在平面直角坐标系中,A在Y轴的正半轴上,B在X轴的正半轴上,点C的坐标(1,4) ABC围成一个直角三角形,∠A等于90度,tan∠CBA=1:3tan∠CBO=2 求 (1) 过A,B,C的二次函数(2
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![一道很难很难的初三数学题在平面直角坐标系中,A在Y轴的正半轴上,B在X轴的正半轴上,点C的坐标(1,4) ABC围成一个直角三角形,∠A等于90度,tan∠CBA=1:3tan∠CBO=2 求 (1) 过A,B,C的二次函数(2](/uploads/image/z/14704106-50-6.jpg?t=%E4%B8%80%E9%81%93%E5%BE%88%E9%9A%BE%E5%BE%88%E9%9A%BE%E7%9A%84%E5%88%9D%E4%B8%89%E6%95%B0%E5%AD%A6%E9%A2%98%E5%9C%A8%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BB%E4%B8%AD%2CA%E5%9C%A8Y%E8%BD%B4%E7%9A%84%E6%AD%A3%E5%8D%8A%E8%BD%B4%E4%B8%8A%2CB%E5%9C%A8X%E8%BD%B4%E7%9A%84%E6%AD%A3%E5%8D%8A%E8%BD%B4%E4%B8%8A%2C%E7%82%B9C%E7%9A%84%E5%9D%90%E6%A0%87%EF%BC%881%2C4%EF%BC%89+ABC%E5%9B%B4%E6%88%90%E4%B8%80%E4%B8%AA%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2%2C%E2%88%A0A%E7%AD%89%E4%BA%8E90%E5%BA%A6%2Ctan%E2%88%A0CBA%3D1%EF%BC%9A3tan%E2%88%A0CBO%3D2+%E6%B1%82+%EF%BC%881%EF%BC%89+%E8%BF%87A%2CB%2CC%E7%9A%84%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0%EF%BC%882)
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