求下列函数的定义域：[tex=7.143x1.357]xuUftlpEqAK/TQ5ld2iLY22nBQLovHERr9TpnzN5PyI=[/tex]；[br][/br]
求下列函数的定义域：[tex=7.143x1.357]xuUftlpEqAK/TQ5ld2iLY22nBQLovHERr9TpnzN5PyI=[/tex]；[br][/br]
1
求下列函数的定义域：[tex=7.143x1.357]xuUftlpEqAK/TQ5ld2iLY22nBQLovHERr9TpnzN5PyI=[/tex]；[br][/br]