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风0001

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[求助] 跪求大神解答一个原函数问题!!已有3人参与

请大家帮助看一下如下问题:
跪求大神解答一个原函数问题!!
这个题目就是证明了一下,第一类间断点处没有原函数,可是我觉得若是第一类中的间断点可以有原函数。比如:
跪求大神解答一个原函数问题!!-1
敬请大神解释一下,我错在哪里了·····

跪求大神解答一个原函数问题!!-2
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Edstrayer

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【答案】应助回帖

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引用回帖:
If the primitive function exists at c, then its derivative at c exists and is unique. However the broken point of the first class said the left derivative and right derivative exist but they are different. A contradiction occurs.

翻译:如果原函数在点x=c处存在,那么在x=c处它的导数是存在唯一的。然而,第一类间断点导出左导数和右导数存在但不相同。这是一个矛盾。
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4楼2014-10-23 07:56:16
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zaq123321

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【答案】应助回帖

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If the primitive function exists at c, then its derivative at c exists and is unique. However the broken point of the first class said the left derivative and right derivative exist but they are different. A contradiction occurs.

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2楼2014-10-23 02:07:19
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风0001

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引用回帖:
2楼: Originally posted by zaq123321 at 2014-10-23 02:07:19
If the primitive function exists at c, then its derivative at c exists and is unique. However the broken point of the first class said the left derivative and right derivative exist but they are diff ...

我实在是水平有限····请您用中文好不?
3楼2014-10-23 07:47:44
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风0001

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引用回帖:
2楼: Originally posted by zaq123321 at 2014-10-23 02:07:19
If the primitive function exists at c, then its derivative at c exists and is unique. However the broken point of the first class said the left derivative and right derivative exist but they are diff ...

貌似没有看懂我的问题······
5楼2014-10-24 21:44:47
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