Problem B. 4724. (September 2015)
B. 4724. Solve the inequality \(\displaystyle x+y-xy+\frac{1}{x} +\frac{1}{y} -\frac{1}{xy}\le 2 \) and represent it in the coordinate plane.
(4 pont)
Deadline expired on October 12, 2015.
Statistics:
157 students sent a solution. 4 points: 97 students. 3 points: 19 students. 2 points: 21 students. 1 point: 17 students. 0 point: 3 students.
Problems in Mathematics of KöMaL, September 2015