已知数列an满足:an=(an-1)/(3an-1+1) ,a1=1,求数列an的通项公式
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2011-04-04
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a1 = 1
a2 = 1/4
a3 = 1/4 / (7/4) = 1/7
a4 = 1/7 / (10/7) = 1/10
an =1/ (3n-2)
a2 = 1/4
a3 = 1/4 / (7/4) = 1/7
a4 = 1/7 / (10/7) = 1/10
an =1/ (3n-2)
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