已知二次函数y1=x2-x-2和一次函数y2=x+1的两个交点分别为A(-1,0),B(3,

已知二次函数y1=x2-x-2和一次函数y2=x+1的两个交点分别为A(-10)B(34),当y1y1时,自变量x的取值范围是(    )

A  x -1x3        B-1x3   Cx-1          Dx3

答案

A

相关题目

当某人被某病毒感染时,不可(   ) A、注入患同样疾病康
当某人被某病毒感染时,不可(   ) A、注入患同样疾病康复者的血清四  B、注入相应的抗体 C、注入干扰素  D、注入有关的疫苗,以刺激机体产生
I.(8分)一水平放置的圆盘绕过其圆心的竖直轴匀速转动,
I.(8分)一水平放置的圆盘绕过其圆心的竖直轴匀速转动,圆盘边缘上固定一竖直挡光片,盘转动时挡光片从一光电数字计时的光电门的狭缝中经过,
.(-x)·(-x)·(-x)2=(-x)4=-x4 B.-x·(-x)2·x2=-x·x2·x2=-x4 C.
.(-x)·(-x)·(-x)2=(-x)4=-x4 B.-x·(-x)2·x2=-x·x2·x2=-x4 C.(-x)2·(-x)3·(-x)4=x9 D.(-x)·(-x)3·(-x)5·x = -x10
______ is no possibility _____ the shy girl can win the first prize in the Engli
______ is no possibility _____ the shy girl can win the first prize in the English speech contest.   A. There; that    B. It; that    C. There; whether    D. It; whether
(1)纤维素与            可形成红色复合物。 (2)常
(1)纤维素与            可形成红色复合物。 (2)常用                作载体包埋酵母细胞,在氯化钙溶液中形成          。 (3
已知在酸性溶液中,下列物质氧化KI时,自身发生如下变化:
已知在酸性溶液中,下列物质氧化KI时,自身发生如下变化:Fe3+→Fe2+;→Mn2+;Cl2→2Cl-;HNO2→NO如果分别用等物质的量的这些物质氧化足量的KI,得到I2
Alice was         the letter from Tom, but it didn't reach her for som
Alice was         the letter from Tom, but it didn't reach her for some reason. A. expecting      B. waiting       C. waiting for     D. expected  
Jack wasn't saying anything,but the teacher smiled at him________he had done
Jack wasn't saying anything,but the teacher smiled at him________he had done something very clever. A.as if                        B.in case C.while           

最新题目