题目列表(包括答案和解析)
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各项均为正数的等比数列{an}中,已知a2="8," a4="128," bn=log2an .
(1)求数列{an}的通项公式;
(2)求数列{bn}的前n项和Sn
(3)求满足不等式
的正整数n的最大值
各项均为正数的等比数列{an}中,已知a2="8," a4="128," bn=log2an .
(1)求数列{an}的通项公式;
(2)求数列{bn}的前n项和Sn
(3)求满足不等式
的正整数n的最大值
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