Re: ISI 2017 key

Posted by dirt314 on Jun 06, 2017; 7:43pm
URL: http://discussion-forum.276.s1.nabble.com/ISI-2017-key-tp7604137p7605074.html

a) f is strictly concave
b) f is strictly convex
c) d2f/dxdy > 0
d) d2f/dxdy < 0