设y=f(x)在x=2处可导,则lim(h→0)f(2+3h)-f(2)/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)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=2处可导,f'(2)=2,则lim h→0 [f(2-3h)-f(2)]/h=?
设f(x)在x=0处可导,则lim(h趋于0)(f(3h)-f(-h))/2h=?
f(x)在x=a处可导, lim(h→0) [f(a+h)-f(a-2h)]/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=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(a+4h)-f(a-2h)]/3h=?
设f'(x) = 3^(1/2) ,求 lim(h→0) [f(x+mh) - f(x - nh)] / h ,(m ,
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))
设f(x)为可导函数,且lim(h→0) f(3)-f(3+h)/2h=5,则f'(3)等于?