已知4x-3y-6z=0,x+2y-7z=0(xy不等于0),试求2x²+y²-6z²除以x²+5y²+3z²的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/11 14:19:54
xTnPJ*"6mUnlbD@!I@Bۀ'YO}+~smCQMJU|3gYMWzڋʁV'%d%:ȣ\5QZ=
/:`uѼƼ?}2ŝ_TݤF^hכwr!a{}=4Kue8?÷uEԟ)w2#9Q"n")ؙch~Ɂ@p{G !*Ep Dž
C ~NXa^A/.Ь/rb}u;"Ѵh % $ZwޗHkJJCxp$4pN'P+E9+skM}F5ɇ)Vcë@{ ?iqhoҀ@A]vs0s,Ŕ {pcØ.-A3,ݧy3 MUX\MO!@C:&