求一道关于等比数列的题.在等比数列{an}中,a1+a2+a3+a4+……+an=(2^n)-1 ,(n∈N+),则(a1^2)+(a2^2)+(a3^2)+……+(an^2)=________.我真的快被这些题目逼疯了啊………………
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![求一道关于等比数列的题.在等比数列{an}中,a1+a2+a3+a4+……+an=(2^n)-1 ,(n∈N+),则(a1^2)+(a2^2)+(a3^2)+……+(an^2)=________.我真的快被这些题目逼疯了啊………………](/uploads/image/z/10401867-27-7.jpg?t=%E6%B1%82%E4%B8%80%E9%81%93%E5%85%B3%E4%BA%8E%E7%AD%89%E6%AF%94%E6%95%B0%E5%88%97%E7%9A%84%E9%A2%98.%E5%9C%A8%E7%AD%89%E6%AF%94%E6%95%B0%E5%88%97%7Ban%7D%E4%B8%AD%2Ca1%2Ba2%2Ba3%2Ba4%2B%E2%80%A6%E2%80%A6%2Ban%3D%282%5En%29-1+%2C%28n%E2%88%88N%2B%EF%BC%89%2C%E5%88%99%28a1%5E2%EF%BC%89%2B%EF%BC%88a2%5E2%EF%BC%89%2B%EF%BC%88a3%5E2%29%2B%E2%80%A6%E2%80%A6%2B%28an%5E2%29%3D________.%E6%88%91%E7%9C%9F%E7%9A%84%E5%BF%AB%E8%A2%AB%E8%BF%99%E4%BA%9B%E9%A2%98%E7%9B%AE%E9%80%BC%E7%96%AF%E4%BA%86%E5%95%8A%E2%80%A6%E2%80%A6%E2%80%A6%E2%80%A6%E2%80%A6%E2%80%A6)
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