已知角
是
的内角,则“
”是“
”的__________ 条件(填“充分非必要”、“必要非充分”、“充要条件”、“既非充分又非必要”之一).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c00673c1a4c2f66f10014ecfede499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0b9b24c44f56961262b7ed05b5f0cf.png)
2017·上海·一模 查看更多[1]
更新时间:2020-01-13 22:47:17
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填空题-单空题
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【推荐1】设
,用
表示不超过
的最大整数,则“
”是“
”的______ 条件.(填“充分不必要”“必要不充分”“充要”或“既不充分又不必要”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216bb6c9c4df47704bacfd4f7a8835f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2c5cd1a25423c609b5b78f11104c57.png)
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解题方法
【推荐2】“三个数
成等比数列”是“
”的__________ 条件.(填“充分不必要、充要、必要不充分、既不充分也不必要”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988b7e964e313579ab8869d67d5be007.png)
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【推荐1】已知函数
的最小正周期为
,其图象关于直线
对称,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebeeba9715614e0c6b5db617d8265334.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac460d7c64329ea7b4fd8c12d5444d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9895bf4192f5c55c16f8270d53c49b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebeeba9715614e0c6b5db617d8265334.png)
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