作者king911015 (早已放棄愛上你)
看板trans_math
標題[微分]
時間Tue Jan 23 19:46:50 2007
The tangent line of f(x)=x^3-2x^2+x+1 is parallel to y=5x+3
at x=?
lim e^x + e^-x - x^2 - 2
x->0 ---------------------
sin^2x - x^2
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