函数f(x)=(sin2x-sinxcosx)/(1+cos2x) (0

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函数f(x)=(sin2x-sinxcosx)/(1+cos2x)(0函数f(x)=(sin2x-sinxcosx)/(1+cos2x)(0函数f(x)=(sin2x-sinxcosx)/(1+cos

函数f(x)=(sin2x-sinxcosx)/(1+cos2x) (0
函数f(x)=(sin2x-sinxcosx)/(1+cos2x) (0

函数f(x)=(sin2x-sinxcosx)/(1+cos2x) (0
f(x)=(sin2x-sinxcosx)/(1+cos2x)
tanx/2 ( 0

函数f(x)在0f(x)=(sin2x-sinxcosx)/(1+cos2x)
=(2sinxcosx-sinxcosx)/[2(cosx)^2]
=(sinxcosx)/[2(cosx)^2]
=(sinx)/[2(cosx)]
=tanx/2
在[0,π/2)上有最小值f(0)=0,当在开区间(0,π/2)上没有最小值.