若数列{An},{Bn}都是等差数列,s,t为已知实数,求证{an^t*bn^t}也是等差数列
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若数列{An},{Bn}都是等差数列,s,t为已知实数,求证{an^t*bn^t}也是等差数列
{an^s*bn^t}
{an^s*bn^t}
![若数列{An},{Bn}都是等差数列,s,t为已知实数,求证{an^t*bn^t}也是等差数列](/uploads/image/z/16426637-53-7.jpg?t=%E8%8B%A5%E6%95%B0%E5%88%97%7BAn%7D%2C%7BBn%7D%E9%83%BD%E6%98%AF%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%2Cs%2Ct%E4%B8%BA%E5%B7%B2%E7%9F%A5%E5%AE%9E%E6%95%B0%2C%E6%B1%82%E8%AF%81%7Ban%5Et%2Abn%5Et%7D%E4%B9%9F%E6%98%AF%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97)
题目确实错了啊
应该是这样的:
若数列{An},{Bn}都是等比数列,s,t为已知实数,求证{an^t*bn^t}也是等比数列.
应该是这样的:
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