已知x+y+z=0,求(y²+z²-x²)分之1+(z²+x²-y²)分之1+(x²+y²-z²)分之1的值阿里嘎多
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/29 22:30:13
xRN@fZKĖO1QffVTb( UYXte/x i9gΜz!^ #KY [>IqREfUiCEBJIVKJI ]vTt+-l2ѩ292B^WS>)AJf8D
YXCD9Vj2`$7f65^@ћŃ
JVADLiĬ_}֮qiT\* X)$C ,E>k|pXav2C;HlX7X" ˭N{;GI?>>Y$_