2810脑筋急转弯中等derivationmedium
Expected Squared Chord Length
题目
Two points are chosen independently and uniformly on the unit circle. What is the expected squared length of the chord joining them?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
你的答案
题目
Two points are chosen independently and uniformly on the unit circle. What is the expected squared length of the chord joining them?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
你的答案