[
鏂囬泦
] [
涓撻
] [
妫�绱�
] [
鐙珛璇勮
] [
娴烽様澶╃┖
] [
鐭涚浘姹熸箹
] [
鍏ㄧ増璁哄潧
]
鎵�璺熷笘:
路庐鹿颅
:
脢脭脢脭脪禄赂枚脦脼脛脭陆芒路篓
2023-08-08 15:58:54
浣滆��:
脝陆脮媒
脌梅潞娄拢隆露脿脨禄隆拢脕铆陆芒拢潞
2023-08-08 17:21:28
[
鐐瑰嚮:1662
]
网上解法，没有先论证α是锐角：
锟斤拷锟洁辑时锟斤拷: 2023-08-08 17:41:22
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