一個題目
Determine the following statements are true or false. Explain your answers.
(a)If the function f(x) discontinuous at the point c
,the lim f(x) does not exist.
x->c
(b)Let f(x) and g(x) are functions on R , then lim f(x)+ limg(x)=lim (f+g)(x)
x->c x->c x->c
(c)If f(x) is a function on the closed interval [a,b]
with f(a)<f(b),then for all L:f(a)<L<g(b),
= =
there exists c :a<c<b such that f(c)=L
上面的問題>< 我不會 有人能告訴我嗎?? 謝謝
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