1. 96£¬ 2. a^2(2 + ¡Ì2)/4
所跟帖: ƽÕý : ijʡ¿¼Ì⣻ 2023-06-17 02:50:27
½âÒ»½â2023-06-17 14:10:32 [点击:2015]
全部跟贴
[¶ÀÆÀ] Ö¤Ã÷ ½Æß [983 b] 2023-06-17 15:54:28 [µã»÷: 2121] (1463168)
r ºÍ a µÄ¹ØÏµÒ²¿ÉÓÉÏàËÆÈý½ÇÐεõ½ÈçÏ£º NABC60 [179 b] 2023-06-23 00:02:27 [µã»÷: 1978] (1463203)
D ΪBC Öеã¿ÉÖ¤ÈçÏ£º NABC60 [180 b] 2023-06-18 05:16:39 [µã»÷: 2179] (1463177)
µÚÒ»Ìâ¡£ ÈüÀ¥ [64 b] 2023-06-17 18:49:09 [µã»÷: 2049] (1463170)
Èý½ÇÐÎABD±»·Ö³É Ãæ»ý16 ºÍ 8 µÄÁ½²¿·Ö ½Æß [88 b] 2023-06-17 20:25:47 [µã»÷: 2157] (1463172)
À÷º¦£¡Åå·þ¡£µÚ¶þî}°ë½Õý´_£¬ ƽÕý [124 b] 2023-06-17 18:48:19 [µã»÷: 2235] (1463169)
ƽ½ÌÊÚÊÇ¶ÔµÄ Â½Æß [0 b] 2023-06-17 20:28:16 [µã»÷: 3050] (1463173)