問題詳情
There are 7 problems in this test. No calculators are allowed. Write down detailed steps forthe solution to each problem. Otherwise, no credits for that problem will be given.
【題組】5. Suppose that 5 points are chosen in a square whose sides have length 2. Showthat there must be at least two points p and g such that the distance between them isno more than √2.
參考答案