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海南省儋州一中2018-2019学年高一上学期期中考试数学试题
海南 高一 期中 2019-01-09 431次

一、单选题添加题型下试题

4. 若eqIddfdab75831e84db083186645902d025c则当eqId3b442e46b32e4e08af0685348aaff013取最小值时,此时x,y分别为(   )
A.4,3B.3,3C.3,4D.4,4
6. 已知eqId996425e3bf764e0aad0090d2f972d942,其中a,b为常数,若eqId000acb2894ca4c51a6ff6f80e3be45df,则eqId3e64876844ab4e8cb91ce98ab8202196等于(    )
A.-26B.-18C.10D.-10
同步
7. 已知不等式ax2bx+2>0的解集为{x|-1<x<2},则不等式2x2bxa<0的解集为(   )
A.eqId0b05fa472cd942c49f090dfd4b6ad04dB.eqId0a991f40f7c743e28652608b2d8e03a6eqId9f543f3a3ca841d0bd892ca0ee2bc51c
C.{x|-2<x<1}D.{x|x<-2或x>1}
8. 已知函数eqId64b172fb767e4765b91c9a7201eeb475,若eqIde4e6d108ef164391977a0549b40d8028,则eqId761b2917a82b4524b8dbab7e6380f014的取值集合是(   )
A.eqIdf3ddd346b6174ee09499eb607e7c991eB.eqId323b87731d7a40809a1defe1e7af7238C.eqId90f5298014d34932881fc9ca4dccdab8D.eqIdfaee20b791094efca985b03cf9cf27c9
更新:2020/06/09 |题型:单选题 |组卷:523|引用[19]
11. 定义在eqId7dcd2312d0bf4bb1befdfcc170e45791上的偶函数eqId4837c94ef0ff4dcf9b1dda4df363275a满足:对任意的eqId427aa61f189848fb9bbbabb798bfd6f0,有eqId95b50a440f6e40aa8c8788ff9002c5a9,且eqId5e57bfb26ff14586bb537fa29df4ec58,则不等式eqIda440357515814ea59142d68957bd0373解集是(   )
A.eqId640a181ef9574f1389108d20ca8863b5B.eqId7ca2091cbe844b4b88b3b5c085b9a2a9
C.eqId334e351ae51749839ee7c09cae214adeD.eqId0ec29daa82784f0e80b9a246cf927ebe

二、填空题添加题型下试题

难度: 0.94 |
同步
13. 函数eqIdf14300f0535e44ebb9b7b3de02a6949beqId58b58fb04cf14fc692212e873d8b4f20是减函数,则实数a的取值范围是______
更新:2020/09/19 |题型:填空题 |组卷:0
15. 已知eqId4837c94ef0ff4dcf9b1dda4df363275a是定义在eqId7dcd2312d0bf4bb1befdfcc170e45791上的偶函数,且eqIddfb0626e164240f6a1d0429a27723c89eqId6fc94f6e181444c6b809fb393eb8fae6恒成立,当eqId85eb53575dd34c888bbb489e15f1b57e时, eqId7a404b74bd6c428c83472db893b78277,则eqId1a016a236eb54e3b9888b462f9feecd0=__________.
16. 已知函数eqId4837c94ef0ff4dcf9b1dda4df363275a在定义域eqId7fa3dd9e55084a9fba0893360e7e5a29上是奇函数又是减函数,若eqIdb9c2fce4e66941b394c983a4a06f7c83,则eqIdb857f977fadc4347b0fb8b53ba4827d3的取值范围是_________.

三、解答题添加题型下试题

典型
18. 求下列函数的定义域
(1)eqIdd60630cc801e4a3aad474d55f87288bd                (2)eqIde1643c38e7a84aa693987983ae1482ea
19. 已知二次函数eqId449445d809a44b31a12bb01f19f99272 满足eqIde825ae8511dd401fbf7fd9b32cc809f0,且eqId46182497abf445c69de79bd5aaf7feac.
(1) 求eqId449445d809a44b31a12bb01f19f99272解析式;
(2)当eqId8522c106d6a84ccaa471a83e64575c33时,eqId9746e7af2fa7443591d5bf2f76e5843d,求eqId7ff1f97895fd443cb86cd8770c42fc3a的值域;
(3)若方程eqIdc2b01f81f0ac418e9ccc33182548f65b没有实数根,求实数m取值范围.
21. 某工厂生产的某种产品,当年产量在eqIdd720c03081be4136b0fa998e7eb5808c吨至eqId399b7e10d75b4bf881cd84239e9d54ff吨之间时,年生产总成本eqId072d7d6b911b42bc89207e72515ebf5f(万元)与年产量eqId8e15963708e9415da25069fea5906e24 (吨)之间的关系可近似地表示成eqId25a7fa686e9b4940b2fb87a47b8a6c18,问年产量为多少时,每吨的平均成本最低?并求出该最低成本.
22. 已知函数eqId6f13759e937144069819aed2ae5a1057是定义在R上的偶函数,且当eqIdd1ed1dcc68014a1480eab590e48decde时,eqId6f13759e937144069819aed2ae5a1057eqIdfc7e75de6c9746f2ad21b14f29484729.
figure
(1)现已画出函数eqId6f13759e937144069819aed2ae5a1057y轴左侧的图像,如图所示,请补出完整函数eqId6f13759e937144069819aed2ae5a1057的图像,并根据图像写出函数eqId6f13759e937144069819aed2ae5a1057的减区间;
(2)写出函数eqId6f13759e937144069819aed2ae5a1057的解析式和值域.