f'(x)=-2,求limf(x+h)-f(x-h)/h(h趋向于0)
人气:233 ℃ 时间:2020-10-02 03:28:42
解答
lim[f(x+h)-f(x-h)]/(2h)→f'(x),则:lim[f(x+h)-f(x-h)]/h→2f'(x)=-4为什么lim[f(x+h)-f(x-h)]/(2h)→f'(x)lim[f(x+h)-f(x-h)]/[(x+h)-(x-h)]→f'(x)
推荐
- 设f(x)=√x,求limf(x+h)-f(x)/h (h趋向于0)
- limf(x)(x趋向于0)=f(0)=1,f(2x)-f(x)=x^2,求f(x)
- n趋向+∞ limf(x)=f(0)=1 f(2x)-f(x)=x^2 求f(x)
- 设f(x)在x=2处连续,且limf(x)/x-2=2,x趋向2时,求f(x)在x=2处导数
- 设f(x-1)={-sinx/x,x>0;2,x=0;x-1,x
- 甲数比乙数大5,甲数的3倍比乙数的5倍大9,怎麽求甲数?
- Mike isn't good at Chinese.(改为否定句)
- 描写人的动作,语言应注意什么
猜你喜欢