2020 National Question 6 Single-choice Differentiating 2020_新课标I Paper 6.函数$f(x)=x^4-2x^3$的图像在点$(1,\ f(1))$处的切线方程为( ) A. $y = -2x - 1$B. $y = -2x + 1$C. $y = 2x - 3$D. $y = 2x + 1$ Answer keyB ☆ SaveCan't do it, show the explanation查看原卷 →