一道求极限的问题,求详细解答

答案是2x,求高手解答,在线等!
2024-11-23 22:59:56
推荐回答(1个)
回答1:

((x+h)²-x²)/h
=(x²+2hx+h²-x²)/h
=(2hx+h²)/h
=2x+h

lim(2x+h)=2x (h->0)