湖北省利川市第五中学2018_2019学年高一数学上学期第6周周练试题(无答案).doc

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1、 1 -湖北省利川市第五中学 2018-2019 学年高一数学上学期第 6 周周练试题(无答案)一、填空题(每小题 5 分,共 40 分)1、设全集 1,234U, 1,2A, ,34B,则 ()UCAB( )A 3,4B C 2,5D 1,2342、设 U=R,A=x|x2-3x-40,B=x|x2-40 ,则 U)(Ax|x-1,或 x2 Bx|-1x2 Cx|-1x4 Dx|x43、已知函数 fx的定义域为 0,4,则函数 21yfx的定义域为 ( )1,215,2BC2,6 3,D4、若函数 )(xf对于任意实数 x恒有 1)(xf,则 )(xf等于( )A、 1 B、 1 C、 1

2、 D、 35、函数 2()3fxx的定义域是A. 3,1 B. , C. ,1, D. ,31,6、下列函数中,与函数 y相等的是( )A3yxB2()xC2xyD xy27、已知函数 定义域是 ,则 的定义域是( )A. B. C. D.8、已知函数 ,则 ( )A32 B16 C. D二、填空题(共 4 小题,每小题 5 分,共 20 分)- 2 -9、已知 1xf,则 (1)f 10、已知函数 3,2)(xf且 8)(0xf,则 0x_, )(xf的值域为_11、已知 20,1x,则实数 的值是_12、已知集合4|3ANZx,则用列举法表示集合 A= 三、解答题(每小题每小题 10 分,

3、共 40 分)13、已知集合 13Ax,集合 21Bxm(1)当 m时,求 ;(2)若 B,求实数 的取值范围;(3)若 A,求实数 m的取值范围14、已知函数 )(xf是一次函数,且 14)(xf,求函数 )(xf的解析式.15、 (1)已知函数 (1)2fx,求 ()f;(2)若函数 )x为二次函数,且 2x, ()4,(0)ff,求函数xf的解析式16、求下列函数的值域:(1) 24yx, 0,3)x;(2) 21()R;(3) yx2018 年秋高一数学第 6 周周周清答题卡- 3 -班级:_ 姓名:_ 考号:_ 分数;_一、填空题(每小题 5 分,共 40 分)题 号 1 2 3 4 5 6 7 8答 案二、填空题(每小题 5 分、共 20 分)9、_ 10、_ 11、_ 12、_三、解答题(每小题 10 分,共 40 分)13、14、- 4 -15、16、

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