数列an满足an+1=2an (0≤an<1/2) 2an-1 (1/2≤an<1) 若a1=6/7 则a2010的值为
1个回答
a1=6/7>1/2
a2=2a1-1=5/7>1/2
a3=2a2-1=3/7
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