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#1 2008-11-17 08:46:20
- Daniel123
- Member
- Registered: 2007-05-23
- Posts: 663
Hyperbolic functions
For the curve with equation y = arsinh(x+1), find
a) the coordinates of its point of inflexion P
b) an equation of the normal to the curve at P.
But this derivative is never 0???
Thanks.
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#2 2008-11-17 08:53:08
- Ricky
- Moderator
- Registered: 2005-12-04
- Posts: 3,791
Re: Hyperbolic functions
An inflection point is dealing with the 2nd derivative.
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."
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#3 2008-11-17 09:01:19
- Daniel123
- Member
- Registered: 2007-05-23
- Posts: 663
Re: Hyperbolic functions
Ahh, woops.
Thanks.
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