1.若实数x,y满足不等式组x+3y-3≥0 ,且目标函数z=x+y的最大值为9,则实数m的值等于2x-y-3≤0x-my+1≥0A.-2 B.-1 C.1 D.22.从1,2,3,4,5中任取两个不同的数,事件A=“取到的两个数之和为偶数”,事件B=”取到的
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![1.若实数x,y满足不等式组x+3y-3≥0 ,且目标函数z=x+y的最大值为9,则实数m的值等于2x-y-3≤0x-my+1≥0A.-2 B.-1 C.1 D.22.从1,2,3,4,5中任取两个不同的数,事件A=“取到的两个数之和为偶数”,事件B=”取到的](/uploads/image/z/12857334-6-4.jpg?t=1.%E8%8B%A5%E5%AE%9E%E6%95%B0x%2Cy%E6%BB%A1%E8%B6%B3%E4%B8%8D%E7%AD%89%E5%BC%8F%E7%BB%84x%2B3y-3%E2%89%A50+%2C%E4%B8%94%E7%9B%AE%E6%A0%87%E5%87%BD%E6%95%B0z%3Dx%2By%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC%E4%B8%BA9%2C%E5%88%99%E5%AE%9E%E6%95%B0m%E7%9A%84%E5%80%BC%E7%AD%89%E4%BA%8E2x-y-3%E2%89%A40x-my%2B1%E2%89%A50A.-2+B.-1+C.1+D.22.%E4%BB%8E1%2C2%2C3%2C4%2C5%E4%B8%AD%E4%BB%BB%E5%8F%96%E4%B8%A4%E4%B8%AA%E4%B8%8D%E5%90%8C%E7%9A%84%E6%95%B0%2C%E4%BA%8B%E4%BB%B6A%3D%E2%80%9C%E5%8F%96%E5%88%B0%E7%9A%84%E4%B8%A4%E4%B8%AA%E6%95%B0%E4%B9%8B%E5%92%8C%E4%B8%BA%E5%81%B6%E6%95%B0%E2%80%9D%2C%E4%BA%8B%E4%BB%B6B%3D%E2%80%9D%E5%8F%96%E5%88%B0%E7%9A%84)
1.若实数x,y满足不等式组x+3y-3≥0 ,且目标函数z=x+y的最大值为9,则实数m的值等于2x-y-3≤0x-my+1≥0A.-2 B.-1 C.1 D.22.从1,2,3,4,5中任取两个不同的数,事件A=“取到的两个数之和为偶数”,事件B=”取到的
1.若实数x,y满足不等式组x+3y-3≥0 ,且目标函数z=x+y的最大值为9,则实数m的值等于
2x-y-3≤0
x-my+1≥0
A.-2 B.-1 C.1 D.2
2.从1,2,3,4,5中任取两个不同的数,事件A=“取到的两个数之和为偶数”,事件B=”取到的两个数均为偶数”,则P(B│A)=
A.1/8 B.1/4 C.2/5 D.1/2
3.若函数f(x)=sinωx(ω>0)在区间[0,π/3]上单调递增,在区间[π/3,π/2]上单调递减,则该函数的周期是
A.π B.2π C.2π/3 D.4π/3
4.过抛物线y∧2=4x的焦点F的直线交该抛物线于A,B亮点,O为坐标原点,若│AF│=3,则△AOB的面积等于
A.√2/2 B.√2 C.3√2/2 D.2√2
5.已知双曲线x∧2/4 -y∧2/b∧2=1的右焦点与抛物线y∧2=12x的焦点重合,则该双曲线的两条渐近线的夹角的正弦值等于
A.4√5/9 B.√3/2 C.√5/3 D.√5/5
6.已知△ABC为等边三角形,AB=2,设点P,Q满足向量AP=λ向量AB,向量AQ=(1-λ)向量AC,λ∈R,若向量BQ点乘向量CP=-3/2,则λ=
A.1/2 B.(1±√2)/2 C.(1±√10)/2 D.(-3±2√2)/2
7.定义在R上的奇函数f(x)满足:f(x)=log2 1/(x+1) ,0≤x<1 ,则F(x)=f(x)-α
1-│x-3│ ,x≥1
(0
1.若实数x,y满足不等式组x+3y-3≥0 ,且目标函数z=x+y的最大值为9,则实数m的值等于2x-y-3≤0x-my+1≥0A.-2 B.-1 C.1 D.22.从1,2,3,4,5中任取两个不同的数,事件A=“取到的两个数之和为偶数”,事件B=”取到的
答案:CBDCAAC