当f(2)=f(0)时,极限=0
当f(2)≠f(0)时,极限不存在其实这是道选择题,A. -2 B.2C.1/2D.-1/2很遗憾,你错了、、、我举个反例f(x)=x,显然f'(0)=1但lim(x->0) [f(0)-f(1)]/x=lim(x->0) -1/x,不存在答案是A你是说题目错了吗?肯定是错了
设f'(0)=1,则x趋近0时{f(0)-f(2)}/x的极限是多少
设f'(0)=1,则x趋近0时{f(0)-f(2)}/x的极限是多少
数学人气:705 ℃时间:2020-01-28 19:19:46
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