------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------句容市第三中学高考热身考试卷2009-5-22班级姓名成绩一、填空题(本题共14小题,每题5分,共70分)1
设集合A={(x,y)|x一y=0},B={(x,y)|2x-3y+4=0},则A∩B=2
计算(1+i)2(1—2i)=.3
已知等差数列{an}中,a4=3,a6=9,则该数列的前9项的和S9=4
若10ga2=m,loga3=n,则=5
命题“x∈R,x2-2x+l≤0”的否定形式为6
设向量a与b的夹角为,a=(2,1),a+3