g(1)=0即f(0)=1 f(0)=b=1 f(√3)=2-√3 得a=-1
f(x)=√1+x² -x=1/(√1+x² +x)
x≥0 f(x)为减函数 0知函数fx=ax+b根号下1+x x≥0,且函数fx与gx的图像关于直线y=x对称,又g1=0, f√3=2-√31问,求fx的表达式及值域。2问是否存在实数m,使得命题p:f(m-m)
同理 g(x)=(1-x² )/2x0
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