设f(x)在(a,b)可导,且lim(x->a﹢)f(x)=lim(x->b﹣)fx=A,证:f′﹙ε﹚=0,ε属于(a
设f(x)在处可导,a b为常数,则lim¤x趋近0{f(x+a¤x)-f(x-b¤x)}/¤x=?
设lim f(x) = A ,lim g(x) = B.用极限定义来证明lim[f(x) ● g(x)] = lim f
设f ' (0)=a,g ' (0)=b,且f(0)=g(0),计算lim((f(x)-g(-x))/x) lim下面是
设函数f(x)在点x=a可导,求lim[f(a)-f(a-△x)]/△x △x→0
设函数f(x)在区间[a,b]上连续,则lim(x->a)∫(a->x)f(t)dt=____,lim(x->a)1/(
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f(x)为可导函数且满足lim(f(a)-f(a-x))/(2x)=-1,x趋近0
设函数f(x)在(a,+∞ )上可导,且lim(x->+∞ )(f(x)+f'(x))=0,证明:lim(x->+∞ )
设f(x)属于C[0,﹢∞﹚,且lim﹙x→﹢∞﹚f﹙x﹚=A﹙A属于R﹚,证明f(x)在[0,﹢∞]上有界
若f﹙x﹚在x=0的某邻域内可导,且lim x→0 f'﹙x﹚=1 则f﹙0﹚ A.是f(x)的极大值 B.是f(x)的
设limf(x)=A,且A>0,证明lim根号f(x)=根号A
高数题:设f(x)>0,x趋向于a且lim f(x)=A ,试证:lim√f(x)=√A