2019-2020学年甘肃省武威第十八中学高一下学期期末模拟考试数学试题 Word版含答案

12-10|数学

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2019~2020学年第二学期高一数学期末模拟考试试卷

选择题(每小题4分,共48分)

1.在 EMBED Equation.DSMT4 中,已知 EMBED Equation.DSMT4 , EMBED Equation.DSMT4 ,则 EMBED Equation.DSMT4 的值为

A. EMBED Equation.DSMT4 B. EMBED Equation.DSMT4 C. EMBED Equation.DSMT4 D. EMBED Equation.DSMT4

2.已知点 EMBED Equation.DSMT4 (-3,3), EMBED Equation.DSMT4 (-5,-1),那么 EMBED Equation.DSMT4 等于( )

A. (-2,-4) B. (-4,-2) C. (2,4) D. (4,2)

EMBED Equation.KSEE3 EMBED Equation.KSEE3

A.60°   B.45°   C.120°   D.30°

4.向量 EMBED Equation.DSMT4 化简后等于( )

A. EMBED Equation.DSMT4 B. EMBED Equation.DSMT4 C. EMBED Equation.DSMT4 D. EMBED Equation.DSMT4

5.在四边形ABCD中,若 EMBED Equation.DSMT4 ,则四边形ABCD一定是( )

A. 正方形 B. 菱形 C. 矩形 D. 平行四边形

6.在△ABC中,M是BC的中点.若 EMBED Equation.DSMT4 = EMBED Equation.DSMT4 , EMBED Equation.DSMT4 = EMBED Equation.DSMT4 ,则 EMBED Equation.DSMT4 =( )

A. EMBED Equation.DSMT4 B. EMBED Equation.DSMT4 C. EMBED Equation.DSMT4 D. EMBED Equation.DSMT4

7.已知向量 EMBED Equation.DSMT4 ,且 EMBED Equation.DSMT4 ,则 EMBED Equation.DSMT4 ( )

A. EMBED Equation.DSMT4 B. EMBED Equation.DSMT4 C. EMBED Equation.DSMT4 D. EMBED Equation.DSMT4

8.已知向量 EMBED Equation.DSMT4 , EMBED Equation.DSMT4 , EMBED Equation.DSMT4 ,则 EMBED Equation.DSMT4 与 EMBED Equation.DSMT4 夹角为( )

A. EMBED Equation.DSMT4 B. EMBED Equation.DSMT4 C. EMBED Equation.DSMT4 D. EMBED Equation.DSMT4

9.在 EMBED Equation.KSEE3 中,已知∠ABC=600中,边长是AB=BC=4,则 EMBED Equation.DSMT4 EMBED Equation.DSMT4 等于( )

A. -16 B. 16 C. -8 D. 8