Question

若且，求x，y的值．

Answer 1

解：∵x，y≠ 0，∴xy≠ 0，
∴lg(xy)=0，∴xy=1，······································································ 3分
即為{x，1，0}={0，|x|，y}，若y=1，則x=1，不合題意，·························· 5分
∴····················································································· 7分
解得：（舍去），，······················································· 8分
∴x=-1，y=-1．············································································· 9分