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yi lei fen shi han shu zui xiao zhi de qiu dao chu li ji tui guang
Author(s): 
Pages: 23-24
Year: Issue:  6
Journal: ZHONGXUE SHUXUE ZAZHI(GAOZHONG BAN)

Abstract:  函数f(x)=a/x-c+b/d-x(a,b,c,d∈R+,c<x<d),求其最小值,文[1][2]采用均值不等式或三角换元变换去求解,并得到当且仅当x=c(√)b+d(√)a/(√)a+(√)b时,f(x)取最小值1/d-c((√)a+(√)b)2的结论.
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