设n不等于0,m²+4n²=4mn,则m²-n²/mn=?初二的题目 大神求解
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![设n不等于0,m²+4n²=4mn,则m²-n²/mn=?初二的题目 大神求解](/uploads/image/z/5295142-46-2.jpg?t=%E8%AE%BEn%E4%B8%8D%E7%AD%89%E4%BA%8E0%2Cm%26%23178%3B%2B4n%26%23178%3B%3D4mn%2C%E5%88%99m%26%23178%3B-n%26%23178%3B%2Fmn%3D%3F%E5%88%9D%E4%BA%8C%E7%9A%84%E9%A2%98%E7%9B%AE+%E5%A4%A7%E7%A5%9E%E6%B1%82%E8%A7%A3)
设n不等于0,m²+4n²=4mn,则m²-n²/mn=?初二的题目 大神求解
设n不等于0,m²+4n²=4mn,则m²-n²/mn=?
初二的题目 大神求解
设n不等于0,m²+4n²=4mn,则m²-n²/mn=?初二的题目 大神求解
m²+4n²=4mn
m²-4mn+4n²=0
(m-2n)²=0
∴m=2n
m²-n²/mn
=(4n²-n²)/2n²
=3/2
m²+4n²=4mnm²-4mn+4n²=0
(m-2n)²=0
m=2n
(m²-n²)/mn=3m²/(2m²)=3/2
m^2+4n^2=4mn,
(m-2n)^2=0
m=2n
m^2=4n^2
(m^2-n^2)/(mn)=3n^2/(2n^2)=3/2