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March 25th, 2013, 08:44 AM   #1
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Critical Numbers and Extreme Values

Find the critical numbers of f and classify the extreme values.
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March 25th, 2013, 09:19 AM   #2
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Re: Critical Numbers and Extreme Values

Disclose your thoughts. Just like in your other question.
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March 25th, 2013, 09:31 AM   #3
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Re: Critical Numbers and Extreme Values

Question to everybody. I have never heard about something like this critical point. Its definition just stupid. A point is a critical point of a function if
1) the function is not derivable in that point
or
2) its derivative = 0.

It is an exact definition, but why is it worth to introduce such an "artificial" concept? It's like you introduce a name for objects, which either don't exist or they exist and their speed is zero.
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