设函数φ(x)=x+1,ψ(x)=x²-1/x-1,且lim(x→1)φ(x)=a,lim(
高数极限求导 设函数f(x)在x=a连续,有lim(x→a+) f'(x)/(x-a)=1,lim
设f(x)有二阶导数,且f''(X)>0,lim(x趋于0)f(x)/x=1 ..证明:当x>0时,有f(x)>x
设函数f(x)有二阶连续导数,且(x->0)lim[f(x)-a]/[e^x^2-1]=0,(x->0)lim[f ‘’
设函数f(x)有二姐连续导数,且(x->0)lim[f(x)-a]/[e^x^2-1]=0,(x->0)lim[f ‘’
设f(x)为可导函数且满足lim(f(a)-f(a-x))/(2x)=-1,x趋近0
已知lim(x→1)g(x)=lim(x→1)h(x)=2,且g(x)≤f(x)≤h(x),则lim(x→1)[2x^2
设函数f x=e^2x-2x,lim f'(x)/e^x -1等于 ,x→0
x→+∞,lim(1+a/x)^x=?
为什么(x趋向正无穷时)lim x乘以ln[(x+a)/(x-a)]=lim x乘以{[(x+a)/(x-a)]-1}
lim(x→∞)[(a x^2)/x+1]+bx=lim(x→∞)(a x^2)+bx(x+1) / x+1=lim(x
lim(x-3/x+1)^x lim趋向无穷大
lim(x+a^x)^1/x=?x趋向于0 (a>0)