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数学
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一道美国数学题
4X的四次方+4X的平方=1
X=?
非常感激
人气：406 ℃ 时间：2020-06-02 01:33:33
解答
4X的四次方+4X的平方+1=2
(2X的平方+1)的平方=2
2X的平方=根号2-1
X=根号( 2分之(根号2-1) )
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