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=1处可导,且f'(1)=2,则[lim(h→0)f(1-h)-f(1)]/h等于 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 函数题,若函数f(x)可导,且f(0)=f'(0)=√2,则lim(h→0)(f^2(h)-2)/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, 已知函数f(x)在x0可导,且lim(h→0)h/[f(x0-2h)-f(x0)]=1/4,则f‘(x0)=? 设f(x)在x=2处可导,f'(2)=2,则lim h→0 [f(2-3h)-f(2)]/h=? 已知函数f(x)在点 x0处可导,且f ′(x0)=3,则lim f(x0+2h)-f(x0)/h等于 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 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 , 设函数f(x)在x=a处可导,且lim[f(a+5h)]-f(a-5h)]/2h=1,则f'(a)=