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Topic: 1.94 - What math PhDs say about limit theory in calculus.
Replies: 9   Last Post: Jul 11, 2014 12:53 PM

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 johngabriel2009@gmail.com Posts: 354 Registered: 5/25/14
Re: 1.94 - What math PhDs say about limit theory in calculus.
Posted: Jul 11, 2014 2:31 AM

On Friday, July 11, 2014 7:53:11 AM UTC+2, Dan Christensen wrote:
> On Friday, July 11, 2014 1:45:41 AM UTC-4, John Gabriel wrote:
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> > On Thursday, July 10, 2014 9:04:26 PM UTC+2, Dan Christensen wrote:
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> > > On Thursday, July 10, 2014 1:50:45 PM UTC-4, John Gabriel wrote:
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> > > > 1. If f(x)=x, then f'(0)=1.
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> > > > 2. If f(x)=x^3, then f'(0)=0.
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> > > > FALSE, because there is no tangent line at x=0. It does not matter that you obtain f'(0)=0 by plugging 0 into 3x^2.
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> > > There is a tangent line at x=0, just like there is one for f(x)=x.
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> > Hey stupid, if f(x)=(x-1)^(1/3) + 2 is the position function, then what is the speed at x = 1?
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> How is this relevant?

Try to answer the question you moron, and you'll find out! Stop spamming my thread you fucking idiot!

> In any case, it seems you cannot deny that there is a tangent line at x=0, just like there is one for f(x)=x.

I can and I have! There is NO tangent line at x=0 where the cubic or f(x)=x is concerned.