y=(x-1/x)*(x^2-1/(x^2))求导

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y=(x-1/x)*(x^2-1/(x^2))求导

y=(x-1/x)*(x^2-1/(x^2))求导
y=(x-1/x)*(x^2-1/(x^2))求导

y=(x-1/x)*(x^2-1/(x^2))求导
展开,y=x³-1/x-x+1/x³
y'=3x²+1/x²-1-1/3*x^(-4/3)