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先点赞,再收藏,这道题太适合玩啦!27/a³和16/(7-a)像俩爱抢戏的小怪兽,定义域是他们的游乐场。别硬算,先把7拆成a和7-a两个玩伴,配凑出能握手言和的形状。易错点?等号能不能同时成立,a的范围别当摆设。复杂方法像绕迷宫,简单技巧才是滑滑梯。小伙伴们,你们玩这题先想到谁?评论区聊聊,别让等号偷偷溜走哦!
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