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2016-2017学年山东省泰安市高三上学期期末数学试卷(文科)
一、选择题(本题共10小题,每小题5分,共50分,在每小题给出的四个选项中,只有一项是符合题目要求的)
1.(5分)已知全集U=R,集合A={x|x<﹣或x>1},B={x|﹣1≤x≤2,x∈Z},则图中阴影部分所表示的集合等于( )
A.{﹣1,2} B.{﹣1,0} C.{0,1} D.{1,2}
2.(5分)给定下列两个命题:
p1:∃a,b∈R,a2﹣ab+b2<0;
p2:在三角形ABC中,A>B,则sinA>sinB.
则下列命题中的真命题为( )
A.p1 B.p1∧p2 C.p1∨(¬p2) D.(¬p1)∧p2
3.(5分)在等差数列{an}中,已知a5+a10=12,则3a7+a9等于( )
A.30 B.24 C.18 D.12
4.(5分)圆x2+y2﹣2x﹣8y+13=0的圆心到直线ax+y﹣1=0的距离为1,则a=( )
A.﹣ B.﹣ C. D.2
5.(5分)已知α,β是两个平面,直线l⊂α,则“α⊥β”是“l⊥β”的( )
A.充要条件 B.充分不必要条件
C.必要不充分条件 D.既不充分也不要条件
6.(5分)平面四边形ABCD中,,则四边形ABCD是( )
A.矩形 B.菱形 C.正方形 D.梯形
7.(5分)若x,y满足,则z=2x+y的最小值是( )
A. B.8 C. D.5
8.(5分)若函数f(x)=﹣x2+x+1在区间(,3)上单调递减,则实数a的取值范围为( )
A.(,) B.(,+∞) C.[,+∞) D.[2,+∞)
9.(5分)将函数f(x)=sin(2x+θ)(﹣<θ<)的图象向右平移φ(0<φ<π)个单位长度后得到函数g(x)的图象,若f(x),g(x)的图象都经过点P(0,),则φ的值为( )
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