江蘇省2009屆高三數(shù)學(xué)小題訓(xùn)練068

1．若復(fù)數(shù)滿足（i是虛數(shù)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(shù)                  ．

5．已知函數(shù)，則              .

6．函數(shù)的最小正周期是                    ．

7．設(shè)等差數(shù)列的前項和為，若 ，則的值為         .

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

9．設(shè)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(shù)滿足  ，則實數(shù)的取值范圍為                .

11．已知函數(shù)是偶函數(shù)，則此函數(shù)圖象與軸交點的縱坐標(biāo)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(shè)向量，則的最小值是                 .

14．如果函數(shù)且在區(qū)間上是增函數(shù)，那么實數(shù)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．