若a-1的绝对值+a^2-ab+1/4b^2=0,则=_____,b=_____.
人气：221 ℃ 时间：2020-05-21 16:03:51
解答
a-1的绝对值+a^2-ab+1/4b^2=0
a-1的绝对值+（a-½b)²=0
a-1=0,a-½b=0
a=1,b=2
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