學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精學(xué)必求其心得，業(yè)必貴于專精2017—2018學(xué)年度高一年級第三次質(zhì)量檢測數(shù)學(xué)試卷一、填空題：本大題共14小題，每小題5分，共70分.請把答案填寫在答題卡相應(yīng)位置上.1。設(shè)全集SKIPIF1〈0集合SKIPIF1〈0，則SKIPIF1<0。2。函數(shù)SKIPIF1<0的最小正周期為.3。若函數(shù)SKIPIF1<0則SKIPIF1〈0.4.在平面直角坐標(biāo)系SKIPIF1〈0中，SKIPIF1<0角終邊上一點SKIPIF1<0的坐標(biāo)為SKIPIF1〈0,則實數(shù)SKIPIF1〈0的值為。5。已知冪函數(shù)SKIPIF1〈0的圖象過點SKIPIF1<0，則SKIPIF1<0.6.已知向量SKIPIF1<0滿足SKIPIF1〈0，且SKIPIF1〈0，則SKIPIF1〈0與SKIPIF1〈0的夾角為。7.若SKIPIF1〈0,則SKIPIF1<0.8.函數(shù)SKIPIF1<0的值域為。9。在SKIPIF1〈0中，SKIPIF1〈0是邊SKIPIF1<0的中點,SKIPIF1〈0若SKIPIF1<0，則SKIPIF1〈0.10。將函數(shù)SKIPIF1〈0的圖象先向左平移SKIPIF1<0個單位，再將圖象上各點的橫坐標(biāo)變?yōu)樵瓉淼腟KIPIF1〈0倍(縱坐標(biāo)不變），那么所得圖象的解析式為SKIPIF1<0.11.若函數(shù)SKIPIF1〈0的一個零點在SKIPIF1<0區(qū)間內(nèi)，另一個零點在SKIPIF1〈0區(qū)間內(nèi)，則實數(shù)SKIPIF1〈0的取值范圍是。12.若SKIPIF1<0，則SKIPIF1〈0。13.已知SKIPIF1<0是定義在SKIPIF1〈0上的奇函數(shù)，當(dāng)SKIPIF1〈0時，SKIPIF1〈0，若函數(shù)SKIPIF1〈0在區(qū)間SKIPIF1<0上的值域為SKIPIF1<0，則實數(shù)SKIPIF1<0的取值范圍為.14。若函數(shù)SKIPIF1〈0在區(qū)間SKIPIF1〈0上單調(diào)遞減，則實數(shù)SKIPIF1<0的取值范圍是。二、解答題:本大題共6小題，共90分.解答應(yīng)寫出必要的文字說明或推理、驗算過程。15。已知向量SKIPIF1<0（1)若SKIPIF1〈0與向量SKIPIF1<0垂直，求實數(shù)SKIPIF1〈0的值；（2）若向量SKIPIF1〈0，且SKIPIF1<0與向量SKIPIF1〈0平行，求實數(shù)SKIPIF1〈0的值.16.設(shè)SKIPIF1〈0，滿足SKIPIF1〈0(1）求SKIPIF1〈0的值;（2）求SKIPIF1〈0的值.SKIPIF1〈014712SKIPIF1〈022924424119617.某機構(gòu)通過對某企業(yè)2016年的生產(chǎn)經(jīng)營情況的調(diào)查，得到每月利潤SKIPIF1<0（單位：萬元）與相應(yīng)月份數(shù)SKIPIF1〈0的部分?jǐn)?shù)據(jù)如下表：（1）根據(jù)上表數(shù)據(jù)，請從下列三個函數(shù)中選取一個恰當(dāng)?shù)暮瘮?shù)描述y與x的變化關(guān)系，并說明理由:SKIPIF1〈0；（2)利用（1）中選擇的函數(shù)，估計月利潤最大的是第幾個月，并求出該月的利潤。18.已知函數(shù)SKIPIF1<0（1）若SKIPIF1〈0，求SKIPIF1〈0的值；（2）若不等式SKIPIF1<0對所有SKIPIF1〈0都成立，求實數(shù)SKIPIF1<0的取值范圍.19。已知SKIPIF1<0為實數(shù)，函數(shù)SKIPIF1<0，其中SKIPIF1〈0（1）若函數(shù)SKIPIF1<0是偶函數(shù)，求實數(shù)SKIPIF1〈0的值；（2）當(dāng)SKIPIF1<0時,SKIPIF1〈0的圖象始終在SKIPIF1<0的圖象的下方，求SKIPIF1<0的取值范圍;（3）設(shè)SKIPIF1〈0，當(dāng)SKIPIF1<0時，函數(shù)SKIPIF1〈0的值域為SKIPIF1〈0，若SKIPIF1〈0的最小值為SKIPIF1〈0，求實數(shù)SKIPIF1<0的值.20.已知向量SKIPIF1<0，函數(shù)SKIPIF1〈0SKIPIF1〈0（1）當(dāng)SKIPIF1<0時，求SKIPIF1〈0的值；（2）若SKIPIF1<0的最小值為