f(x)=(x^2+1/x^2)+1/x,求f(x)用配凑法
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f(x)=(x^2+1/x^2)+1/x,求f(x)用配凑法f(x)=(x^2+1/x^2)+1/x,求f(x)用配凑法f(x)=(x^2+1/x^2)+1/x,求f(x)用配凑法用配凑法f(x-1/
f(x)=(x^2+1/x^2)+1/x,求f(x)用配凑法
f(x)=(x^2+1/x^2)+1/x,求f(x)用配凑法
f(x)=(x^2+1/x^2)+1/x,求f(x)用配凑法
用配凑法
f(x-1/x)=x²-2+1/x²+2
=(x-1/x)²+2
∴f(x)=x²+2
以上回答你满意么?
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