请在这里概述您的问题若ab>0,且A(a,0)、B(0,b)、C(-2,-2)三点共线,则ab的最小值为___________.解析上 写直线经过第三象限的C(-2,-2),由直线的性质可知,a
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![请在这里概述您的问题若ab>0,且A(a,0)、B(0,b)、C(-2,-2)三点共线,则ab的最小值为___________.解析上 写直线经过第三象限的C(-2,-2),由直线的性质可知,a](/uploads/image/z/2765220-60-0.jpg?t=%E8%AF%B7%E5%9C%A8%E8%BF%99%E9%87%8C%E6%A6%82%E8%BF%B0%E6%82%A8%E7%9A%84%E9%97%AE%E9%A2%98%E8%8B%A5ab%3E0%2C%E4%B8%94A%28a%2C0%29%E3%80%81B%280%2Cb%29%E3%80%81C%28-2%2C-2%29%E4%B8%89%E7%82%B9%E5%85%B1%E7%BA%BF%2C%E5%88%99ab%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%E4%B8%BA___________.%E8%A7%A3%E6%9E%90%E4%B8%8A+%E5%86%99%E7%9B%B4%E7%BA%BF%E7%BB%8F%E8%BF%87%E7%AC%AC%E4%B8%89%E8%B1%A1%E9%99%90%E7%9A%84C%28-2%2C-2%29%2C%E7%94%B1%E7%9B%B4%E7%BA%BF%E7%9A%84%E6%80%A7%E8%B4%A8%E5%8F%AF%E7%9F%A5%2Ca)
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