m+1/m=4
m^2+1/m^2
=(m+1/m)^2-2
=4^2-2
=16-2
=14
已知m加m分之1等于4,求m的平方加m平方分之1的值
已知m加m分之1等于4,求m的平方加m平方分之1的值
数学人气：534 ℃时间：2019-09-17 13:57:35
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