函数z=ln(x2 y2-1) https://bgk-photo.cdn.bcebos.com/d52a2834349b033bad2786bb05ce36d3d539bd20.jpg的定义域是 [ ]A:{(x,y)|1≤x2 y2≤9}B:{(x,y)|1C:{(x,y)|1D:{(x,y)|1≤x2 y2<9} 函数 定义域 发布时间:2024-05-17 11:39:23