2016-2017学年山东省泰安市高三上学期期末数学试卷(文科)(解析版)

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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|xx1}B={x|1x2xZ},则图中阴影部分所表示的集合等于(  )

A{12} B{10} C{01} D{12}

2.(5分)给定下列两个命题:

p1abRa2ab+b20

p2:在三角形ABC中,AB,则sinAsinB

则下列命题中的真命题为(  )

Ap1 Bp1p2 Cp1(¬p2 D.(¬p1p2

3.(5分)在等差数列{an}中,已知a5+a10=12,则3a7+a9等于(  )

A30 B24 C18 D12

4.(5分)圆x2+y22x8y+13=0的圆心到直线ax+y1=0的距离为1,则a=(  )

A.﹣ B.﹣ C D2

5.(5分)已知αβ是两个平面,直线lα,则“αβ”“lβ”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,则四边形ABCD是(  )

A.矩形 B.菱形 C.正方形 D.梯形

7.(5分)若xy满足,则z=2x+y的最小值是(  )

A B8 C D5

8.(5分)若函数fx=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fx=sin2x+θ)(﹣θ)的图象向右平移φ0φπ)个单位长度后得到函数gx)的图象,若fx),gx)的图象都经过点P0),则φ的值为(  )

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