Problem B. 4724. (September 2015)
B. 4724. Solve the inequality \(\displaystyle x+yxy+\frac{1}{x} +\frac{1}{y} \frac{1}{xy}\le 2
\) and represent it in the coordinate plane.
(4 pont)
Deadline expired on 12 October 2015.
Statistics:
158 students sent a solution.  
4 points:  97 students. 
3 points:  19 students. 
2 points:  21 students. 
1 point:  17 students. 
0 point:  3 students. 
Unfair, not evaluated:  1 solution. 
