名校
解题方法
1 . 已知数列
满足
,
,设
,若数列
是单调递减数列,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d9b8c1a12561ed6d1391ac7694cc4bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e888a9d26291b7867e878356f96eab2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cba6f3826eab4d4657a23dd0f9e11dbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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