摘要:13.-1 14. ,
网址:http://m.1010jiajiao.com/timu_id_4447362[举报]
(14分)已知集合A={x|x2-2x-8≤0,x∈R},B={x|x2-(2m-3)x+m2-3m≤0,x∈R,m∈R }.
(1)若A∩B=[2,4],求实数m的值;
(2)设全集为R,若A∁RB,求实数m的取值范围.
网址:http://m.1010jiajiao.com/timu_id_4447362[举报]
(14分)已知集合A={x|x2-2x-8≤0,x∈R},B={x|x2-(2m-3)x+m2-3m≤0,x∈R,m∈R }.
(1)若A∩B=[2,4],求实数m的值;
(2)设全集为R,若A∁RB,求实数m的取值范围.