Given that the positive real numbers x, y, and z satisfy:
x2+xy+y2=9
y2+yz+z2=16
z2+zx+x2=25
Determine xy+yz+zx
(In reply to
. by Wilma Carr)
WHAT'S WITH YOU?
WHY, DESPITE REPEATED REMINDERS, YOU ARE STILL INDULGING IN POSTING IRRELEVANT AND IDIOTIC COMMENTS????