[LON-CAPA-users] Does formula response support inequalities?
itayf at nospammail.net
Sat Mar 29 11:37:36 EDT 2014
(Originally sent with the wrong sender address. My apologies in
advance if double-posting has occurred.)
Consider a certain physical in which stable equilibrium exists if
2*k*l^2 - mgL > 0,
where k,l,m,g, and L, are parameters.
I would like to challenge my students with a problem for which the
answer would be the above symbolic inequality.
However, as I understand I _cannot_ use formula response for that purpose; is this correct? or did I miss something?
I believe I could use formula response to challenge the students by
reformulating the question like this
"A stable equilibrium would exist if the potential energy, mgL, be
and match the students' response against the expression "2*k*l^2".
But I think that asking them to provide the full inequality is preferred.
Thanks in advance.
Itay Furman, Ph.D.
The Jerusalem College of engineering
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