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Topic: Calculus Product Rule Contradiction?????
Replies: 5   Last Post: Nov 19, 2004 12:42 AM

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Posts: 20
Registered: 12/6/04
Calculus Product Rule Contradiction?????
Posted: Nov 7, 2004 4:12 AM
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I'm alittle confused with regard to the Calculus Product Rule, on the one
hand I have this rule
[f(x)g(x)]' = f(x)g'(x) + g(x)f''(x)

but two pages before this I have this statement: the limit of a product
equals the the product of the limits
lim [f(x) x g(x)] = lim f(x) x lim g(x) as h ----> a

so whats the difference between these two statements because to me they seem
like the same thing only with two different rules???????

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