We can't, because it's false. If all black dots happen to be on the line x=0and white dots on the line x=π (and the rest of the plane is neither white nor black), there is no such pair. Now if each point of the plane were either black or white (and there were infinitely many of each type), that would be different.
yyami2286
A question asked during an interview for a technology analysts role at Goldman Sachs. If you know the answer, you probably should be working for NASA.
Answers & Comments
Answer:
We can't, because it's false. If all black dots happen to be on the line x=0and white dots on the line x=π (and the rest of the plane is neither white nor black), there is no such pair. Now if each point of the plane were either black or white (and there were infinitely many of each type), that would be different.
NO Pairs thats all