1 . 已知
,
为正整数,且
,则在下列各式中,正确的个数是( )
①
;②
;③
;④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6de09c789d2c2c4a2f6f7804767311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856b137a34d2d5b20671b7a3c7a29606.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b96b1b955a8dbbe259e547b7eb8be81f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89fe1c18f28df96410ecce93d303754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f940bfa8905db4c80419a5ca08fb7cc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6de09c789d2c2c4a2f6f7804767311.png)
A.1 | B.2 | C.3 | D.4 |
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2022-08-29更新
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4卷引用:江苏省镇江市2022-2023学年高三上学期期初数学试题