设函数f(x)在a处可导,求极值 lim h-0 f(a)-f(a-h)/h
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(x)-f(x+3h))/h等于(),求过程
设函数f(x)在x=a处可导,且lim[f(a+5h)]-f(a-5h)]/2h=1,则f'(a)=
f(x)在x=a处可导, lim(h→0) [f(a+h)-f(a-2h)]/h=
设f(x)在点x=a处可导那么lim h趋近于0时 f(a+h)-f(a-h)/h 等于多少
若函数f(x)在点x=a处可导,则lim(h→0)[f(a+4h)-f(a-2h)]/3h=?
若函数f(x)在x=a处的导数为A,求lim(h→0)[f(a+h)-f(a+2h)]/h的值,
1.函数f(x)在x=a处可导 ,则lim h->a [f(a+3h)-f(a-h)]/2h=?
函数f(x)在x=a处可导,则Lim h→a [f(a+3h)-f(a-h)]/2h=?
函数f(x)在x=a处可导,则lim h→0 (f(a+3h)-f(a-h))÷2h=?
设函数f(x)在x0处可导,则对任意常数a,b,lim(h→0) [f(x0+ah)-f(x0-bh)]/h =
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