设f'(x) = 3^(1/2) ,求 lim(h→0) [f(x+mh) - f(x - nh)] / h ,(m ,
设f'(x) = 3^(1/2) ,求 lim(h→0) [f(x+mh) - f(x - nh)] / h ,(m ,
设f(x)在x=2处可导,且f'(2)=1,则lim h→0 [ f(2+h)-f(2-h)]/h等于多少,
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
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f(x)在x=2处可导,f'(2)=2,则lim h→0 [f(2-3h)-f(2)]/h=?
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
设f(X)在x=x0处具有二阶导数f''(x0),试证:lim(h→0)(f(x0+h)-2f(x0)+f(x0-h))
高数求救 设f '(x)存在,h→0时,lim (f(x+2h)-f(x-3h))/h
设函数f(x)在x=x0处可导,则lim(h>0)[f(x0)-f(x0-2h)]/h
设f(x)为可导函数,且lim(h→0) f(3)-f(3+h)/2h=5,则f'(3)等于?
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
若f(x)有二阶导数,证明f''(x)=lim(h→0)f(x+h)-2f(x)+f(x-h)/h^2.