A,B是双曲线y=k/x上的两点,分别过A,B两点向X轴Y轴做垂线,垂足分别为C,D,E,F,若S阴影=3,S1+S2=8,则k=?
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![A,B是双曲线y=k/x上的两点,分别过A,B两点向X轴Y轴做垂线,垂足分别为C,D,E,F,若S阴影=3,S1+S2=8,则k=?](/uploads/image/z/10220787-27-7.jpg?t=A%2CB%E6%98%AF%E5%8F%8C%E6%9B%B2%E7%BA%BFy%3Dk%2Fx%E4%B8%8A%E7%9A%84%E4%B8%A4%E7%82%B9%2C%E5%88%86%E5%88%AB%E8%BF%87A%2CB%E4%B8%A4%E7%82%B9%E5%90%91X%E8%BD%B4Y%E8%BD%B4%E5%81%9A%E5%9E%82%E7%BA%BF%2C%E5%9E%82%E8%B6%B3%E5%88%86%E5%88%AB%E4%B8%BAC%2CD%2CE%2CF%2C%E8%8B%A5S%E9%98%B4%E5%BD%B1%3D3%2CS1%2BS2%3D8%2C%E5%88%99k%3D%3F)
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