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江蘇省2009屆高三數學小題訓練068

1．若復數滿足（i是虛數單位），則=__________．

2．已知命題：“，”，請寫出命題的否定:               ．                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

3．已知，其中，則       ．

4．若方程的解為，則滿足的最大整數                  ．

5．已知函數，則              .

6．函數的最小正周期是                    ．

7．設等差數列的前項和為，若 ，則的值為         .

8．已知圓經過橢圓  的一個頂點和一個焦點，則此橢圓的離心率=               .

9．設直線： 的傾斜角為，直線： 的傾斜角為，且  ，則的值為            .

10．已知存在實數滿足  ，則實數的取值范圍為                .

11．已知函數是偶函數，則此函數圖象與軸交點的縱坐標的最大值是            ．

12．已知點在直線上，點在直線上，中點為，且，則的取值范圍為                .

13．已知平面上的向量、滿足,，設向量，則的最小值是                 .

14．如果函數且在區間上是增函數，那么實數的取值范圍是                ．

1．   2．,    3．    4．2   5．1     6．

7．50   8．  9．-2   10．    11．2     12．

13．2     14．