新疆昌吉市第九中学2018_2019学年高二数学上学期第二次月考试题.doc

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1、1昌吉市第九中学 2018-2019学年第一学期第二次月考试卷高二年级数学试题分值:150 分 时间:120 分钟 注意事项:1答题前填写好自己的姓名、班级、考号等信息2请将答案正确填写在答题卡上一、选择题1抛物线 的准线方程是 ( ) 281xyA B C D 3y321y2y2已知两点 、 ,且 是 与 的等差中项,则动点 的轨迹1(,0)F2(,)12F1PFP方程是 ( ) A B C D2169xy216xy2143xy2134xy3若 A ,B ,C ,则ABC 的形状是( )),()3,4(),(A不等边锐角三角形 B直角三角形 C钝角三角形 D等边三角形4设 ,则 是 的( )

2、aR1aA充分但不必要条件 B必要但不充分条件C充要条件 D既不充分也不必要条件5如图,空间四边形 ABCD中, M、 G分别是 BC、 CD的中点,则 等于( )BAB21A BDAC DGMG6以坐标轴为对称轴,以原点为顶点且过圆 的圆心的抛物线 09622yx2的方程是( ) A 或 B 23xy2x23xyC 或 D 或9yxy97、设 ,则方程 不能表示的曲线为0,22sincos1xyA、椭圆 B、双曲线 C、抛物线 D、圆8、已知条件 p: D、0m1 的解集为 R,命题 q:f(x)=(52m) x是减函数,若 p或 q为真命题,p 且 q为假命题,求实数 m的取值范围.78昌吉市第九中学 2018-2019学年第一学期第二次月考试卷高二年级数学试题答案题号 1 2 3 4 5 6 7 8 9 10 11 12答案 B C A A C D C B A C D B二填空13 任意有理数 ,使 14 15、 ( ) 16、x20321695xy09,41三、解答题: 17. a1 即 q是真命题,m2由于 p或 q为真命题,p 且 q为假命题 故 p、q 中一个真,另一个为假命题 因此,1m2

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