Maths doubt

Posted by The Villain on Mar 04, 2014; 7:24am
URL: http://discussion-forum.276.s1.nabble.com/Maths-doubt-tp7585046.html

Let g(x)=f(x)+f(1-x) and f"(x)>0 for all x belongs to(0,1) then g(x) is

a increasing on (0,1/2) and decreasing on (1/2,1)
b increasing on (1/2,1) and decreasing on (0,1/2)
c increasing on (0,1)
d decreasing on (0,1