1.在数列{an}中,a1=4,a2=10,若{log3【a(n)-1】}为等差数列.Tn=1/(a2-a1)+1/(a3-a2)+……+1/【a(n+1)-an】=?2.在等差数列{an}中,已知am(m是下标)=1/k,ak(k是下标)=1/m,(m,k∈正整数,m≠k)则数列{an}
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![1.在数列{an}中,a1=4,a2=10,若{log3【a(n)-1】}为等差数列.Tn=1/(a2-a1)+1/(a3-a2)+……+1/【a(n+1)-an】=?2.在等差数列{an}中,已知am(m是下标)=1/k,ak(k是下标)=1/m,(m,k∈正整数,m≠k)则数列{an}](/uploads/image/z/5931519-15-9.jpg?t=1.%E5%9C%A8%E6%95%B0%E5%88%97%7Ban%7D%E4%B8%AD%2Ca1%3D4%2Ca2%3D10%2C%E8%8B%A5%7Blog3%E3%80%90a%EF%BC%88n%EF%BC%89-1%E3%80%91%7D%E4%B8%BA%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97.Tn%3D1%2F%EF%BC%88a2-a1%EF%BC%89%2B1%2F%EF%BC%88a3-a2%EF%BC%89%2B%E2%80%A6%E2%80%A6%2B1%2F%E3%80%90a%EF%BC%88n%2B1%EF%BC%89-an%E3%80%91%3D%3F2.%E5%9C%A8%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%7Ban%7D%E4%B8%AD%2C%E5%B7%B2%E7%9F%A5am%EF%BC%88m%E6%98%AF%E4%B8%8B%E6%A0%87%EF%BC%89%3D1%2Fk%2Cak%EF%BC%88k%E6%98%AF%E4%B8%8B%E6%A0%87%EF%BC%89%3D1%2Fm%2C%EF%BC%88m%2Ck%E2%88%88%E6%AD%A3%E6%95%B4%E6%95%B0%2Cm%E2%89%A0k%EF%BC%89%E5%88%99%E6%95%B0%E5%88%97%7Ban%7D)
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