下列四个命题中真命题的个数是
①设
,则
的充要条件是
;
②在
中,
;
③将函数
的向右平移1个单位得到函数
;
④
;
⑤已知
是等差数列
的前
项和,若
,则
;
①设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a74d0b6a72b5418c83ea29e00e8c739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c7c8fb2526caab81e433379b5d6784.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e63b7265fc297a0eabcb0d6a5c9dc73.png)
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9795880ae08bd58a72fd6cb2c6cf2d6d.png)
③将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae20e2bfcc752c07a7ce6614b0b1a03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca61bf038693cd60f158cff43d604246.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f7417226faa8ecd67359f7d527fc57.png)
⑤已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/effdf8cadd1a54cb5e0f3a621dd4ea80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1955a75fa716da1acd1c5e4e9c1cf518.png)
A.1 | B.2 | C.3 | D.4 |
更新时间:2018-11-18 10:45:49
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【推荐1】下列四个命题中真命题的个数是
①设
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,则
的充要条件是
;
②在
中,
;
③将函数
的图象向右平移
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;
④
;
⑤已知
是等差数列
的前
项和,若
,则
;
①设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5615dd2fa05634dfefb04907774c424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73df6c9da21eee7f1e745108b2e1f14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89879d3524590fe7d253b6e3086de649.png)
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②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9795880ae08bd58a72fd6cb2c6cf2d6d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560bbc204bacf92bfef3a6befdf6cb7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24673652ec4d076c169ac72b8e968378.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75af283b6cd817bc74085d1cb6fffa04.png)
⑤已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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