解题方法
1 . 若“
”是“
”的充分不必要条件,则实数
的取值范围为_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a551a88ac426439803f564a3bbee04a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3fab5970b37f3cdcc72caaa35b603b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
2 . 已知
,且
,则
的最小值为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b388567a2f2bd33db05d1d7978364ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80122060f33e4497f17b186ea7a5174b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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3 . 已知集合
.若
,则
的取值范围是__________ ;若
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e1da2f4be4729c1eb42925190d3aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daaf32608a178fb7549d3fbda629d2ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 如图,
中,
分别在射线
上滑动,开始时,点
与点
重合.当点
向点
运动时,点
沿着
方向运动(保持
形状不变),点
从起始位置运动到点
的过程中,点
的运动轨迹的长度是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88caf684bf220b0dad460d75361bdd05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81451aab89c418bd1b7996627b58c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2281b85925f638db0eb6cfe27d0558f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/0fd0237a-4b80-4eb7-baa8-67e5a519fbe0.png?resizew=152)
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5 . 函数
图像与
轴交于点
,将函数图像绕点
顺时针方向旋转
后得到的函数图像对应的表达式是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e192225e485cbfc7fedaa57af03798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
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6 . 将
的线段分成
段,每一段长均为不小于
的整数厘米,分完后,任何三段都不能构成三角形,则
最大为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e651babde701d43faadf589dd4e14c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1d7f842f070363d1134a387aa10e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048b61a5fb5f420c6d7de88db5bc3aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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7 . 如图,在正方形
中,
分别为
边中点,连接
,
与
交点分别为
,已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f76e37d6e6b182896ccaaa187cfe07.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ae536809b1161fd4e83fdc7f42be96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf31e6dc8da7201ecd34f2848ac5eff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81ed3ac61a0e30e0d6a5593dd5357ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc63db088f9edf7782341885a079078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9ae69e01d76ab5a91ca2b76f8e698e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b08b8ca5b6992ec9804c12c6959243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f76e37d6e6b182896ccaaa187cfe07.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/3d7c5ac0-6e83-4213-bc91-d084f73989e5.png?resizew=117)
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8 . 已知二次函数
,该函数图像上有四个点
,且满足
,则
的大小关系是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8326b4730970e5a7ac93b53075038de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4557a97a17857a08aeb0a39489f10b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7a262d36d4d0f2cae62127aab1bd4e.png)
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9 . 四边形
是正方形,边长为
在
上,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d320d8f9c899586d10f3039cb6c8ce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c5b1f6941bb34b59e176879de45d92.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/2b70ec6e-5b88-43f2-be23-43bf5329a3f6.png?resizew=143)
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10 . 在四边形
中,
,求
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf87862cc8967ee948741ac8c3a31c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/53ba111b-9e15-49a1-9010-6d642327e9bb.png?resizew=128)
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