设a,b,c∈[-1,1],求证ab+bc+ac+1≥0,

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 04:37:56
xVN@~6[ Uv-qP{!@:H *%!_߅zmWn8M@8r;v'X6,뽢٭-%%lJȔ*GN-!+Vy+Kݹ` "CfE,Dm櫎t@%M->I̙8W^Tx?ns)pƂEtgt!-"(r @:4LSPJPDшJetW ָj4֐@r汩ϋ)&ZjMR+ r:Zk$A7^"ҩT&AcgAT#.WٴĦIF lReN;W Xd55 U1U67$7fCTāo%Qa Z!xj4Xr7U&JL9lf\F:{WkHzEt/ˀ4#ed<<|Ǧ0E&nI_ )ӌZ%k`cA)w:>lsJe'e*=Ɉf6l&MV I"tKQŨ " 5$,xvQ@TO Ca9 wf(@j`>&l{?e~\0DsFr%ÛJJߐl?$1=L1 K=O&5O8fo_nz;/QoR,f^s0co? dHn .AG :, Pr@S,%gvAXY|%Rlw~|Z7%Fv|CWX|Z"<`%x>7vc