大小不等的n(n>2)個球,它們最多能有多少切點呢?
所有跟帖:
• 每兩個球有一個切點。3個球最多有3個切點. 在3個球上再放一個在這3個球上, -yma16- ♂ (222 bytes) () 06/08/2023 postreply 16:17:08
• 每兩個球有一個切點。3個球最多有3個切點. 在3個球上再放一個在這3個球上, -yma16- ♂ (222 bytes) () 06/08/2023 postreply 16:17:08
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