Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.



Re: [apcalculus] hyperbolic functions in AB
Posted:
Feb 18, 2012 2:25 AM


On 2/17/2012 6:15 PM, Scott Kennedy wrote:
> The problem 2004 AB3 asks for the acceleration at time t=2 given that > v(t) = 1  arctan(e^t). This is a calculator active question, and > when differentiated it gives a function that includes cosh. I never > taught my students hyperbolic functions, and was a bit surprised > because I was not aware that they are part of the AB curriculum. Do > I need to spend time teaching these functions? Or is there a better > way to approach this situation? > > S. Kennedy
Since you're only looking for the numeric answer, perhaps it would be better to encourage the students to use
d(1arctan(e^t),t)t=2.0
Hyperbolic functions are not required for either AB or BC. However, if time allows, I like to introduce them.
wes
==== Course related websites: http://apcentral.collegeboard.com/calculusab http://apcentral.collegeboard.com/calculusbc  To search the list archives for previous posts go to http://lyris.collegeboard.com/read/?forum=apcalculus To unsubscribe click here: http://lyris.collegeboard.com/read/my_forums/ To change your subscription address or other settings click here: http://lyris.collegeboard.com/read/my_account/edit



