设
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf3935ea958cb302fcd9d89a9182b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3559a1c42cd5ae9509f79693891e6853.png)
A.8 | B.11 | C.12 | D.18 |
更新时间:2023-01-05 17:18:54
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【推荐2】
的展开式中的常数项为( )
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A.![]() | B.60 | C.64 | D.120 |
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【推荐1】已知
为定义在
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,则方程
实数根的个数为( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
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A.1 | B.2 | C.3 | D.4 |
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【推荐1】已知等比数列
的前
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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【推荐2】17世纪,在研究天文学的过程中,为了简化大数运算,苏格兰数学家纳皮尔发明了对数,对数的思想方法即把乘方和乘法运算分别转化为乘法和加法,数学家拉普拉斯称赞为“对数的发明在实效上等于把天文学家的寿命延长了许多倍”.已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35c755987a8b68554300df41ea6ccc2.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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