資陽市2021—2022學(xué)年度高中年級第一學(xué)期期末質(zhì)量檢測數(shù)  學(xué) 注意事項:1.答題前,考生務(wù)必將自己的姓名、準考證號填寫在答題卡上,并將條形碼貼在答題卡上對應(yīng)的虛線框內(nèi)。2.回答選擇題時,選出每小題答案后,用鉛筆把答題卡上對應(yīng)題目的答案標號涂黑。如需改動,用橡皮擦干凈后,再選涂其它答案標號?;卮鸱沁x擇題時,將答案寫在答題卡上。寫在本試卷上無效。3.考試結(jié)束后,將本試卷和答題卡一并交回。 一、選擇題:本題共12小題,每小題5分,共60分。在每小題給出的四個選項中,只有一項是符合題目要求的。1已知集合,則A        BC        D2函數(shù)的定義域為A        BC        D 3已知,A3         B5C7         D154已知角的頂點與坐標原點重合,始邊與軸的非負半軸重合.若在角α終邊上A        B0C         D5 函數(shù)的零點所在的區(qū)間為A        BC        D6 下列函數(shù)中為奇函數(shù)且在單調(diào)遞增的是A        BC        D
7得到函數(shù)的圖象,可將函數(shù)圖象上的所有點A向右平移個單位      B平移個單位 C向右平移個單位      D平移個單位 8. 已知函數(shù)為偶函數(shù),則A                    BC                    D9設(shè),,則a,bc大小關(guān)系為A        BC        D 10某企業(yè)注重科技創(chuàng)新,逐年加大研發(fā)資金投入.現(xiàn)分析了過去10年來的研發(fā)資金投入情況,已知2010年投入研發(fā)資金80萬元,2020年投入研發(fā)資金320萬元,且每年投入研發(fā)資金的增長率相同,則該企業(yè)在2022年投入的研發(fā)資金約為參考數(shù)據(jù):,A346.4萬元       B368萬元C400萬元        D423.2萬元11已知函數(shù)是定義在R上的奇函數(shù),且單調(diào)遞增,又,則不等式的解集為A        BC      D12.已知函數(shù) 若函數(shù)(其中6個不同的零點,則實數(shù)的取值范圍是A        BC        D
二、填空題:本大題共4小題,每小題5分,共20分。13求值:________14給出兩個條件:,;上單調(diào)遞增.請寫出一個同時滿足以上兩個條件的一個函數(shù)________寫出滿足條件的一個函數(shù)即可15已知集合,.若,則實數(shù)的取值范圍是________16已知函數(shù)).給出以下結(jié)論:,則函數(shù)的最小正周期為,則函數(shù)在區(qū)間上單調(diào)遞增;,函數(shù)的圖象的對稱軸方程為;,,則的最大值為其中,所有正確結(jié)論的序號是________ 三、解答題:本大題共70分。解答應(yīng)寫出文字說明、證明過程或演算步驟。17. 10分)已知全集,集合1,求2,實數(shù)的取值范圍    18. 12分)已知,1)求;2)求值的值.  
19. 12分)已知(其中).1)若,,求實數(shù)的取值范圍;2)若的最大值大于1,求的取值范圍.    20. 12分)已知函數(shù)的圖象關(guān)于點對稱.1)當時,求函數(shù)的值域;2)若將圖象上各點的縱坐標保持不變,橫坐標變?yōu)樵瓉淼?/span>倍(其中,所得圖象的解析式為.若函數(shù)有兩個零點,求的取值范圍.    21. 12分)已知函數(shù)是定義在R上的奇函數(shù),當時,1)求函數(shù)解析式;2)判斷函數(shù)R上的單調(diào)性,并用調(diào)性定義進行證明;3)令函數(shù).若對任意,求m的取值范圍.    22. 12分)定義在D上的函數(shù)對任意,存在常數(shù),都有成立,則稱D上的有界函數(shù),其中M稱為函數(shù)的上界已知函數(shù)1是奇函數(shù),判斷函數(shù)是否為有界函數(shù),并說明理由2)若函數(shù)上是以為上界的函數(shù),求實數(shù)m的取值范圍.
資陽市2021—2022學(xué)年度高中年級第一學(xué)期期末質(zhì)量檢測數(shù)學(xué)參考答案及評分意見評分說明:1.本解答給出了一種解法供參考,如果考生的解法與本解答不同,可根據(jù)試題的主要考查內(nèi)容比照評分參考制定相應(yīng)的評分細則。2.對計算題,當考生的解答在某一步出現(xiàn)錯誤時,如果后繼部分的解答未改變該題的內(nèi)容和難度,可視影響的程度決定后繼部分的給分,但不得超過該部分正確解答應(yīng)得分數(shù)的一半;如果后繼部分的解答有較嚴重的錯誤,就不再給分。3.解答右端所注分數(shù),表示考生正確做到這一步應(yīng)得的累加分數(shù)。4.只給整數(shù)分。選擇題和填空題不給中間分。 一、選擇題:本大題共12小題,每小題5分,共60分。15BACDB;6-10CDCAD;1112CD二、填空題:本題共4小題,每小題5分,共20分。13214. ,寫出滿足條件的一個函數(shù)即可;15;注:未寫成區(qū)間或集合不扣分16①②④三、解答題:共70分,解答應(yīng)寫出文字說明、證明過程或演算步驟。17. 10分)1時,···················································2·························································52方法1,···························································8解得,故的取值范圍是·········································10方法2:若,,解得,················································8所以時,的取值范圍是,的取值范圍是···············································10注:第2小題結(jié)果未寫成區(qū)間或集合不扣分18. 12分)1方法1:由,可知·········································2,得所以,則····················································4所以·······················································6方法2由已知得,可知,········································2于是有,····················································4所以·······················································62···························································10···························································1219. 12分)1時,,即有·······················································2所以解得故實數(shù)的取值范圍是···········································62)因為,則時,時,則函數(shù)最大值,解得······································8時,則函數(shù)最大值,解得······································10綜上所述,的取值范圍是········································12注:結(jié)果未寫成區(qū)間或集合不扣分20. 12分)1)由題,所以,即有··················································2,則······················································3所以時,,則,所以,函數(shù)的值域為···········································62)由題可得,,··············································8,得,即有······················································9時,的零點依次為,,····································10因為函數(shù)有兩個零點,所以 解得,的取值范圍是·········································12注:第(2)小題結(jié)果未寫成區(qū)間或集合不扣分21. 12分)1)由于是定義在R上的奇函數(shù),則,······························2時,,所以的解析式為···············································42)函數(shù)R上的單調(diào)遞增,·····································5證明如下:任取,且,知,,所以,函數(shù)R上的單調(diào)遞增.·····································83)由(2)知,函數(shù)R上的單調(diào)遞增,時最小值又知函數(shù)上單調(diào)遞增,g(x)上的最大值g(x)maxg(2)··································10因為任意,所以有f(x)min g(x)max,則,所以m的取值范圍是·············································12注:第(3)小題結(jié)果未寫成區(qū)間或集合不扣分22. 12分)1)若是奇函數(shù),則,所以恒成立,是奇函數(shù)時,···············································2此時,,則,于是,則, 時,,······················································4所以,函數(shù)為有界函數(shù).······································52)若函數(shù)上是以為上界的函數(shù),則有上恒成立.恒成立,即恒成立,···········································6所以 即不等式組上恒成立. ·········································8因為單調(diào)遞,其最大值為··································9上也單調(diào)遞減,其最小值為··································10所以  ,故實數(shù)m的取值范圍是··········································12注:第(2)小題結(jié)果未寫成區(qū)間或集合不扣分 

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