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1、1 复合函数练习题一、求函数的定义域1、设函数fx()的定义域为01,则函数fx()2的定义域为;函数fx()2的定义域为 _;2、若函数(1)fx的定义域为 23,则函数(21)fx的定义域是;函数1(2)fx的定义域为。3、知函数fx()的定义域为1,1,且函数()()()Fxfxmfxm的定义域存在,求实数 m的取值范围。二、求函数的值域4、求下列函数的值域:223yxx()xR223yxx1,2x311xyx311xyx(5)x262xyx225941xxyx31yxx2yxx(9)12yxx(10)若函数(1)fx定义域为(3,4,则函数()fx的定义域为(11)已知函数3231()
2、3xfxaxax定义域为R,则实数 a 的取值范围是(12)已知2211()fxxxx,则(1)fx=5、已知函数222()1xaxbfxx的值域为 1,3,求,a b的值。三、求函数的解析式1、设()fx是定义在R上的函数,且()fx满足(2)()fxfx,当 0,2 x时,2()2fxxx,2 求2,0 x时()fx=。2、已知()fx是二次函数,且2(1)(1)24fxfxxx,求()fx的解析式。3、已知函数()fx满足2()()34fxfxx,则()fx=。4、设()fx是 R 上的奇函数,且当0,)x时,3()(1)fxxx,则当(,0)x时()fx=,()fx在 R上的解析式为。
3、5、设()fx与()gx的 定 义 域 是|,1xxRx且,()fx是 偶 函 数,()gx是 奇 函 数,且1()()1fxgxx,求()fx与()gx的解析表达式。四、求函数的单调区间6、函数()fx在0,)上是单调递减函数,则2(1)fx的单调递增区间是7、函数236xyx的递减区间是;函数236xyx的递减区间是五、综合题9、判断下列各组中的两个函数是同一函数的为()3)5)(3(1xxxy,52xy;111xxy,)1)(1(2xxy;xxf)(,2)(xxg;xxf)(,33()g xx;21)52()(xxf,52)(2xxf。A、B、C、D、10、若函数()fx=3442mxm
4、xx的定义域为R,则实数 m 的取值范围是()A、(,+)B、(0,43 C、(43,+)D、0,43)11、若函数2()1fxmxmx的定义域为R,则实数 m 的取值范围是()(A)04m (B)04m(C)4m(D)04m12、对于11a,不等式2(2)10 xaxa恒成立的x 的取值范围是()(A)02x(B)0 x或2x(C)1x或3x(D)11x13、已知 函数fx()的定义 域是(01,则gxfxafxaa()()()()120的定义域为。14、已知函数21mxnyx的最大值为4,最小值为 1,则 m=,n=文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7
5、Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X
6、4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y
7、2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7
8、K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF
9、5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX
10、7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8
11、D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O83 15、把函数11yx的图象沿x 轴向左平移一个单位后,得到图象C,则 C关于原点对称的图象的解析式为16、已知函数211()log1xfxxx,求函数的定义域,并讨论它的奇偶性单调性。文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D
12、7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:C
13、F5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 H
14、X7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT
15、8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码
16、:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9
17、 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8文档编码:CF5X4I10H2Q9 HX7Y2I5V6H9 ZT8D7K7Y7O8
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