关于数列{a_n}={b^(1/2)-(b+a_(n-2))^(1/2)}的极限

On the Limit of Sequence ｛a_n｝=｛b^(1/2)-(b+a_(n-2))^(1/2)｝

通过构造辅助函数的方法 ,运用Lagrange中值定理 ,统一和推广了关于数列 {an}={b -b +an-2 }的极限的有关结果。

The results Concerned of the limit of sequence ｛a n｝=｛b-b+a n-2 ｝ have been unified and generalized by constructing auxiliary function and making use of lagrangian mean value theorem.