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Question 1 · Fill in the blank · 中档
(5分)(2016•江苏)已知集合 $\cdot \mathrm { A } { = } \left\{ \begin{array} { r } { { - 1 } , } \end{array} 2 , \begin{array} { r } { 3 , } \end{array} 6 \right\}$ $\mathrm { B } { = } \{ \mathrm { x } { \mathrm { ~ } } | \mathrm { ~ - ~ } 2 { < } \mathrm { x } { < } 3 \}$ ,则A∩B=\_\_\_\_
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Question 2 · Free response · 中档
(5分)(2016•江苏)复数$z=$(1+2i)(3﹣i),其中i为虚数单位,则z的实部是
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Question 3 · Free response · 中档
(5分)(2016•江苏)在平面直角坐标系xOy中,双曲线 $\frac { \mathbf { x } ^ { 2 } } { 7 } - \frac { \mathbf { y } ^ { 2 } } { 3 } = 1$ 的焦距是
Answer key $2 { \sqrt { 1 0 } } .$
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Question 6 · Free response · 中档
(5分)(2016•江苏)如图是一个算法的流程图,则输出的a的值是
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Question 7 · Free response · 中档
(5分)(2016•江苏)将一颗质地均匀的骰子(一种各个面上分别标有1,2,3,4,5,6个点的正方体玩具)先后抛掷2次,则出现向上的点数之和小于10的概率是
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Answer key ${ \frac { 5 } { 6 } } .$
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Question 8 · Free response · 中档
(5分)(2016•江苏)已知 $\{ \mathbf { a } _ { \mathrm { n } } \}$ 是等差数列, $\mathrm { { S _ { n } } . }$ 是其前n项和,若 ${ \bf a } _ { 1 } { + } { \bf a } _ { 2 } ^ { 2 } { = } { - } ~ 3 , ~ { \bf S } _ { 5 } { = } 1 0$ 则a<sub>9</sub>的值是
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Question 9 · Free response · 中档
(5分)(2016•江苏)定义在区间[0,3π]上的函数$y=sin2x$的图象与$y=cosx$的图象的交点个数是
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Question 10 · Free response · 中档
(5分)(2016•江苏)如图,在平面直角坐标系xOy中,F是椭圆 $\frac { x ^ { 2 } } { a ^ { 2 } } + \frac { y ^ { 2 } } { b ^ { 2 } } = 1 ( a > b > 0$
)的右焦点,直线 $\mathrm { y } { = } \frac { \mathrm { b } } { 2 }$ 与椭圆交于B,C两点,且∠BFC=90°,则该椭圆的离心率是
Answer key $\frac { \sqrt { 6 } } { 3 }$
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Question 11 · Free response · 中档
(5分)(2016•江苏)设f(x)是定义在R上且周期为2的函数,在区间[﹣1,1)上,$\textbf { f } ( \mathbf { x } ) = \left\{ \begin{array} { l l } { \mathbf { x } + \bar { \mathbf { a } } , \quad - 1 \leqslant \mathbf { x } < 0 } \\ { \displaystyle \left| \frac { 2 } { 5 } - \mathbf { x } \right| , \ 0 \leqslant \mathbf { x } < 1 } \end{array} \right. ,$ ,其中a∈R,若f $( - \frac { 5 } { 2 } ) = 5 ( \frac { 9 } { 2 } )$ ,则f(5a)的值是
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Answer key $- \frac { 2 } { 5 }$
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Question 12 · Free response · 中档
(5分)(2016•江苏)已知实数x,y满足 $\left\{ \begin{array} { l l } { { \bf x } - 2 { \bf y } + 4 \mathcal { R } \nabla 0 } \\ { 2 { \bf x } + { \bf y } - 2 \mathcal { R } 0 } \\ { 3 { \bf x } - { \bf y } - 3 \leqslant 0 } \end{array} \right.$ ,则 $\mathbf { x } ^ { 2 } { + } \mathbf { y } ^ { 2 }$ 的取值范围是
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Answer key $[ \frac { 4 } { 5 } , 1 3 ]$
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Question 13 · Free response · 中档
(5分)(2016•江苏)如图,在 $\triangle \mathrm { A B C }$ 中,D是BC的中点,E,F是AD上的两个三等分点, $\overrightarrow { B A } \cdot \overrightarrow { C A } = 4$ $\overrightarrow { \mathrm { B F } } \cdot \overrightarrow { \mathrm { C F } } = - \mathrm { ~ 1 ~ }$ ,则 $\overrightarrow { \mathrm { B E } } \cdot \overrightarrow { \mathrm { C E } } |$ 的值是\_
Answer key $\frac { 7 } { 8 }$
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Question 14 · Fill in the blank · 中档
(5分)(2016•江苏)在锐角三角形ABC中,若$\sin A=2\sin B\sin C$,则$\tan A\tan B\tan C$的最小值是______.
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Question 15 · Free response · 中档
(14分)(2016•江苏)在 $\triangle \mathrm { A B C }$ 中,AC=6, $\cos B = \frac { 4 } { 5 } , C = \frac { \pi } { 4 }$
(1)求AB的长;
(2)求 $\cos { \mathrm { ~ ( A - \frac { \pi } { 6 } ) } }$ 的值.
Answer key See explanation
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Question 16 · Free response · 中档
(14分)(2016•江苏)如图,在直三棱柱 $\mathrm { A B C } - \mathrm { A _ { 1 } B _ { 1 } C _ { 1 } }$ 中,D,E分别为AB,BC的中点,点F在侧棱 $\mathrm { B _ { 1 } B _ { \cdot } }$ 上,且 $\mathrm { B _ { 1 } D \bot A _ { 1 } F , ~ \ A _ { 1 } C _ { 1 } \bot A _ { 1 } B _ { 1 } }$ .求证:
(1)直线DE∥平面 $\mathrm { A } _ { 1 } \mathrm { C } _ { 1 } \mathrm { F }$
(2)平面 $\mathrm { B _ { 1 } D E \perp }$ 平面 $\mathrm { A } _ { 1 } \mathrm { C } _ { 1 } \mathrm { F }$
Answer key See explanation
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Question 22 · Free response · 中档
(10分)(2016•江苏)已知矩阵A=$\begin{bmatrix}1&2\\0&-2\end{bmatrix}$,矩阵B的逆矩阵B$^{-1}$=$\begin{bmatrix}1&-\dfrac{1}{2}\\0&2\end{bmatrix}$,求矩阵AB.
Answer key $\begin{bmatrix}1&\dfrac{5}{4}\\0&-1\end{bmatrix}$
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Question 23 · Free response · 中档
(2016•江苏)在平面直角坐标系xOy中,已知直线l的参数方程为 $\left\{ \begin{array} { l l } { \displaystyle \mathbf { x } = 1 + \frac { 1 } { 2 } \mathbf { t } } \\ { \displaystyle \mathbf { y } = \frac { \sqrt { 3 } } { 2 } \mathbf { t } } \end{array} \right.$ (t为参数),椭圆C的参数方程为 $\scriptstyle { \left\{ \begin{array} { l l } { \mathbf { x } = \cos { \boldsymbol { \Theta } } } \\ { \mathbf { y } = 2 \sin { \boldsymbol { \Theta } } } \end{array} \right. }$ (θ为参数),设直线l与椭圆C相交于A,B两点,求线段AB的长
Answer key See explanation
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Question 25 · Free response · 中档
(10分)(2016•江苏)如图,在平面直角坐标系xOy中,已知直线l: $\mathbf { x } - \mathbf { y } - 2 { = } 0$ ,抛物线C: $\scriptstyle \mathbf { y } ^ { 2 } = 2 \mathbf { p } \mathbf { x } \ \left( \mathbf { p } > 0 \right)$
(1)若直线l过抛物线C的焦点,求抛物线C的方程;
(2)已知抛物线C上存在关于直线l对称的相异两点P和Q
①求证:线段PQ的中点坐标为 $( 2 \tt - p , \mathrm { ~ \tt ~ - ~ p ~ ) ~ }$
②求p的取值范围
Answer key See explanation
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