第一章 集合与常用逻辑用语 (11 11:36:8)已知集合A={x∣x^2+4x=0,x∈R},B={x∣x^2+2(a+1)x+a^2-1=0,a∈R,x∈R}.若B包含于A,求a的取值范围.
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/17 04:58:00
![第一章 集合与常用逻辑用语 (11 11:36:8)已知集合A={x∣x^2+4x=0,x∈R},B={x∣x^2+2(a+1)x+a^2-1=0,a∈R,x∈R}.若B包含于A,求a的取值范围.](/uploads/image/z/5196453-69-3.jpg?t=%E7%AC%AC%E4%B8%80%E7%AB%A0+%E9%9B%86%E5%90%88%E4%B8%8E%E5%B8%B8%E7%94%A8%E9%80%BB%E8%BE%91%E7%94%A8%E8%AF%AD+%2811+11%3A36%3A8%29%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%7Bx%E2%88%A3x%5E2%2B4x%3D0%2Cx%E2%88%88R%7D%2CB%3D%7Bx%E2%88%A3x%5E2%2B2%EF%BC%88a%2B1%EF%BC%89x%2Ba%5E2-1%3D0%2Ca%E2%88%88R%2Cx%E2%88%88R%7D.%E8%8B%A5B%E5%8C%85%E5%90%AB%E4%BA%8EA%2C%E6%B1%82a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.)
xSNA~,%bK+LPĘEtDH-QJ_1vq߅^
=3+49{s}3ŖAo.wK*&IJѵg
A!EAvie9L~mQV7bF%w[<M-=d4V.*)I?Ӓ3rX#-B_vq=%ۧ cz֕ɛq 5G['{y["k@x{%4:P!f6>"x8,n ]ߝ{R);#+8 1NL=^-ҡ̡Gx8'=2Km,Ǭs=B ۰[@`(9l#Oyi;vӽ!^m9c`*!9f۷sO?=C+o10ӛD"#6vJρtQxvpVqR&"sCr<<¢W%yY\6hH/ i2Cjr"Lf&[&ŏڇ4<