已知y=x3-x,计算在x=2处当△x分别等于0.1,0.01时的△y及dy.
举一反三
- 已知y=x3-x,计算在x=2处,当△x分别等于1,0.1,0.01时的△y及dy.
- 已知y=x3-x, 计算在x=2处当Dx等于1时, Dy=______ ,dy=______ ;当Dx等于0.1时, Dy=______ ,dy=______ ;当Dx等于0.01时, Dy=______ ,dy=______ ;
- 已知y=x^2-x,计算在x=2处当△x=1时的△y及dy
- 已知函数y=x^3-x,计算在x=2处,当△x分别为1,0.1,0.01时的△y及dy
- 设函数f(x,y)连续,则∫12dx∫x2f(x,y)dy+∫12dy∫y4-yf(x,y)dx=( ). A: ∫12dx∫14-xf(x,y)dy. B: ∫12dx∫x4-xf(x,y)dy C: ∫12dx∫14-yf(x,y)dy. D: ∫12dx∫yyf(x,y)dy