推 jacky7987 :choose epsilon=L/2 and use defn of lim 11/19 16:12
Q:
Given that limit of g(x) = L when x approaches to c, where L > 0, prove that
there exists an open interval (a,b) containing c such that g(x) > 0 for all x
that does not equal to c in (a,b).
請問應該怎麼下手呢？
謝謝!!
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 114.45.251.141