如图一,在平面直角坐标系中,曲线y=k/x(x>0)与矩形OACB交于点M(4,2)及点N,且四边形OMCN的面积是8①求证OACB为正方形②如图②,设P(a,b)为曲线y=k/x(x>0)上MN间一点,过点P作PD⊥x轴交AB于G,P
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![如图一,在平面直角坐标系中,曲线y=k/x(x>0)与矩形OACB交于点M(4,2)及点N,且四边形OMCN的面积是8①求证OACB为正方形②如图②,设P(a,b)为曲线y=k/x(x>0)上MN间一点,过点P作PD⊥x轴交AB于G,P](/uploads/image/z/15151641-33-1.jpg?t=%E5%A6%82%E5%9B%BE%E4%B8%80%2C%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%2C%E6%9B%B2%E7%BA%BFy%3Dk%2Fx%EF%BC%88x%EF%BC%9E0%EF%BC%89%E4%B8%8E%E7%9F%A9%E5%BD%A2OACB%E4%BA%A4%E4%BA%8E%E7%82%B9M%EF%BC%884%2C2%EF%BC%89%E5%8F%8A%E7%82%B9N%2C%E4%B8%94%E5%9B%9B%E8%BE%B9%E5%BD%A2OMCN%E7%9A%84%E9%9D%A2%E7%A7%AF%E6%98%AF8%E2%91%A0%E6%B1%82%E8%AF%81OACB%E4%B8%BA%E6%AD%A3%E6%96%B9%E5%BD%A2%E2%91%A1%E5%A6%82%E5%9B%BE%E2%91%A1%2C%E8%AE%BEP%EF%BC%88a%2Cb%EF%BC%89%E4%B8%BA%E6%9B%B2%E7%BA%BFy%3Dk%2Fx%EF%BC%88x%EF%BC%9E0%EF%BC%89%E4%B8%8AMN%E9%97%B4%E4%B8%80%E7%82%B9%2C%E8%BF%87%E7%82%B9P%E4%BD%9CPD%E2%8A%A5x%E8%BD%B4%E4%BA%A4AB%E4%BA%8EG%2CP)
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