当x>0时f(x)=(1-cosx)/√x,当x<=0时,f(x)=x^2*g(x)当x>0时f(x)=(1-cosx)/√x,当x<=0时,f(x)=x^2*g(x),
当x>0时f(x)=(1-cosx)/√x,当x<=0时,f(x)=x^2*g(x),且g(x)有界,求f(x)在x=0处值...
当x>0时f(x)=(1-cosx)/√x,当x<=0时,f(x)=x^2*g(x),且g(x)有界,求f(x)在x=0处值
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