摘要:∴= -12分
网址:http://m.1010jiajiao.com/timu_id_64810[举报]
(12分)设集合A={x|x2-3x+2=0},B={x|x2+2(a+1)x+(a2-5)=0}.
(1)若A∩B={2},求实数a的值;
(2)若A∪B=A,求实数a的取值范围.
网址:http://m.1010jiajiao.com/timu_id_64810[举报]
(12分)设集合A={x|x2-3x+2=0},B={x|x2+2(a+1)x+(a2-5)=0}.
(1)若A∩B={2},求实数a的值;
(2)若A∪B=A,求实数a的取值范围.