f(x)=3/(5-x) + x^2 /5 ,求 f '(0) ,f
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f(x)=3/(5-x)+x^2/5,求f''(0),ff(x)=3/(5-x)+x^2/5,求f''(0),ff(x)=3/(5-x)+x^2/5,求f''(0),ff''(x)=3/(5-x)^2+2/5
f(x)=3/(5-x) + x^2 /5 ,求 f '(0) ,f
f(x)=3/(5-x) + x^2 /5 ,求 f '(0) ,f
f(x)=3/(5-x) + x^2 /5 ,求 f '(0) ,f
f'(x)=3/(5-x)^2+2/5*x f'(0)=3/25 f'(2)=1/3+4/5=17/15
f(x)=5x+3 f(x)=5x f(x)=x+2x+1 f(x)=5x+3 f(x)=5x f(x)=x+2x+1
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