1975 Canadian MO Problems/Problem 3: Difference between revisions
Created page with "== Problem 3 == For each real number <math>r</math>, <math>[r]</math> denotes the largest integer less than or equal to <math>r</math>, <math>e.g.,</math> <math>[6] = 6, [\pi]..." |
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{{Old CanadaMO box|before=First question|num-a=2|year= | {{Old CanadaMO box|before=First question|num-a=2|year=1975}} | ||
, ![$[r]$](http://latex.artofproblemsolving.com/2/f/c/2fcabe2c2b8ebe2c428830acb9874cb8a8df790f.png)
denotes the largest integer less than or equal to 
![$[6] = 6, [\pi] = 3, [-1.5] = -2.$](http://latex.artofproblemsolving.com/8/2/5/825d9ba2f293564a2458fd45270dfd17158cbf45.png)
Indicate on the 
-plane the set of all points ![$[x]^2+[y]^2 = 4$](http://latex.artofproblemsolving.com/2/0/1/2019989a66ed5f3d8bc3f035ea78235365d5495b.png)
.
