一道与等差数列有关的高一数学题目已知a,b,c是互不相等的实数,若a,b,c成等差数列,则a,c,b成等比数列,a/b的值是(请写过程)为什么我算出来是错的?我是这样算的c²=ab,a+c=2bc=根号ab a+根号ab=2b (
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![一道与等差数列有关的高一数学题目已知a,b,c是互不相等的实数,若a,b,c成等差数列,则a,c,b成等比数列,a/b的值是(请写过程)为什么我算出来是错的?我是这样算的c²=ab,a+c=2bc=根号ab a+根号ab=2b (](/uploads/image/z/400462-70-2.jpg?t=%E4%B8%80%E9%81%93%E4%B8%8E%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%E6%9C%89%E5%85%B3%E7%9A%84%E9%AB%98%E4%B8%80%E6%95%B0%E5%AD%A6%E9%A2%98%E7%9B%AE%E5%B7%B2%E7%9F%A5a%2Cb%2Cc%E6%98%AF%E4%BA%92%E4%B8%8D%E7%9B%B8%E7%AD%89%E7%9A%84%E5%AE%9E%E6%95%B0%2C%E8%8B%A5a%2Cb%2Cc%E6%88%90%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%2C%E5%88%99a%2Cc%2Cb%E6%88%90%E7%AD%89%E6%AF%94%E6%95%B0%E5%88%97%2Ca%2Fb%E7%9A%84%E5%80%BC%E6%98%AF%28%E8%AF%B7%E5%86%99%E8%BF%87%E7%A8%8B%29%E4%B8%BA%E4%BB%80%E4%B9%88%E6%88%91%E7%AE%97%E5%87%BA%E6%9D%A5%E6%98%AF%E9%94%99%E7%9A%84%3F%E6%88%91%E6%98%AF%E8%BF%99%E6%A0%B7%E7%AE%97%E7%9A%84c%26%23178%3B%3Dab%2Ca%2Bc%3D2bc%3D%E6%A0%B9%E5%8F%B7ab+a%2B%E6%A0%B9%E5%8F%B7ab%3D2b+%28)
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