来自柯亨玉的问题
已知数列{an}满足an=2a(n-1)+2^n-1(n>或=2),a1=5,bn=(an-1)/(2^n).(1)证明{}为等差数列.(1)证明:{bn}为等差数列
已知数列{an}满足an=2a(n-1)+2^n-1(n>或=2),a1=5,bn=(an-1)/(2^n).(1)证明{}为等差数列.
(1)证明:{bn}为等差数列
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2020-11-16 17:20