设函数f(x)在点x处可导,试求h→0 lim f(x+h)-f(x-h)/2h的值
设函数f(x)在点x处可导,试求h→0 lim f(x+h)-f(x-h)/2h的值
设函数f(x)在点x处可导,试求h→0 lim f(x-h)-f(x)/h的值
设函数f(x)在点x0处可导,求lim(h→0)(f(x0+h)-f(x0-h))/2h的值
f(x)在x_0处可导,求lim h→0 f(x_0+h)-f(x_0-h)/5h 的值
设函数f(x)在x=x0处可导,则lim(h>0)[f(x0)-f(x0-2h)]/h
设函数f(x)在点x0处可导,且f'(x0)=2,则lim(h→0)[f(x0-h/2)-f(x0)]/h等于多少
若函数f(x)在点x=a处可导,则lim(h→0)[(f(x)-f(x+3h))/h等于(),求过程
设f(x)在x=a处可导,f'(x)=b 求极限lim(h-0) f(a-h)-f(a+2h)/ h
若函数f(x)在点x=a处可导,则lim(h→0)[f(a+4h)-f(a-2h)]/3h=?
设 函数 f(x)在x=2处可导,且f(2)的导数=1求: lim f(2+h)—f(2—h)/2h h→0
设函数f(x)在x=1处可导,且f'(1)=2,则[lim(h→0)f(1-h)-f(1)]/h等于
f(x)在x=a处可导, lim(h→0) [f(a+h)-f(a-2h)]/h=