假定答案x. 则 x=R//(2R+x) ... I don't know if 1/2 is correct thou.

假定答案x. 则 x=R//(2R+x) ... I don't know if 1/2 is correct thou.

所有跟贴·加跟贴·新语丝读书论坛

送交者: tinaliang 于 2008-12-05, 19:48:39:

回答: 怎么算的？要是考试没中间结果是零分由 HunHunSheng 于 2008-12-05, 19:40:27:

turned out the answer is [sqrt(3)-1]R. (无内容) - tinaliang (0 bytes) 2008-12-05, 20:03:30 (281663)