江苏省2009届高三数学小题训练068

1．若复数满足（i是虚数单位），则=__________．

2．已知命题：“，”，请写出命题的否定:               ．                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

3．已知，其中，则       ．

4．若方程的解为，则满足的最大整数                  ．

5．已知函数，则              .

6．函数的最小正周期是                    ．

7．设等差数列的前项和为，若 ，则的值为         .

8．已知圆经过椭圆  的一个顶点和一个焦点，则此椭圆的离心率=               .

9．设直线： 的倾斜角为，直线： 的倾斜角为，且  ，则的值为            .

10．已知存在实数满足  ，则实数的取值范围为                .

11．已知函数是偶函数，则此函数图象与轴交点的纵坐标的最大值是            ．

12．已知点在直线上，点在直线上，中点为，且，则的取值范围为                .

13．已知平面上的向量、满足,，设向量，则的最小值是                 .

14．如果函数且在区间上是增函数，那么实数的取值范围是                ．

1．   2．,    3．    4．2   5．1     6．

7．50   8．  9．-2   10．    11．2     12．

13．2     14．