求老师解答:用1,2,3,4,5,6组
\u5b66\u6821\u8fd0\u6765200\u68f5\u6811\u82d7\uff0c\u8001\u5e08\u683d\u4e8610\uff05\uff0c\u5269\u4e0b\u7684\u63095\u22364\u22363\u7684\u6bd4\u4f8b\u5206\u7ed9\u516d1\u3001\u516d2\u3001\u516d3\uff0c\u516d3\u73ed\u5206\u5230\u591a\u5c11\u68f5\u6811\u82d7\uff1f\u8001\u5e08\u683d\u4e8610%\uff0c\u90a3\u4e48\u7528200\u4e58\u4ee510%\u7b49\u4e8e20\uff0c\u7528\u603b\u4f53200\u51cf\u53bb20\uff0c\u8fd8\u5269\u4e0b180\uff0c\u6309\u71675\uff1a4\uff1a3\u5206\u914d\uff0c\u603b\u4f53\u4e3a12\uff085+4+3\uff09\uff0c\u516d3\u73ed\u5360\u4e8612\u5206\u4e4b3\uff0c\u90a3\u4e48\u5c31\u7528180\u4e58\u4ee512\u5206\u4e4b3\u7b49\u4e8e45\u8bfe\uff0c\u516d3\u73ed\u5206\u5230\u4e8645\u68f5
\u4e00\u5b9a\u662f\u5408\u6570\u3002n\u65b9\uff0b3n\uff0b2=\uff08n\u65b9+2n+1\uff09+n+1=(n+1)\u65b9+\uff08n+1\uff09=(n+1)*(n+2) \u56e0\u4e3an\u4e3a\u81ea\u7136\u6570\uff0c\u5bf9\u4e8e\u8fd9\u4e2a\u4ee3\u6570\u5f0f\u603b\u6709\u4e00\u7ec4\u4e0d\u4e3a1\u7684\u8d28\u6570\u56e0\u6570\uff0c\u6240\u4ee5\u503c\u4e00\u5b9a\u662f\u5408\u6570
40 |
绛旓細40
绛旓細瑙o細褰撳叕宸负1鏃讹紝缁勬垚绛夊樊鏁板垪鐨勪笁涓暟鍙互鏄1锛2锛3锛2锛3锛4锛3锛4锛5锛4锛5锛6鍏4涓紱 褰撳叕宸负-1鏃讹紝鍙煡涔熸湁4涓紱 褰撳叕宸负2鏃讹紝缁勬垚绛夊樊鏁板垪鐨勪笁涓暟鍙互鏄1锛3锛5锛2锛4锛6鍏2涓紱 褰撳叕宸负-2鏃讹紝鍙煡涔熸湁2涓紱 缁间笂鍙煡锛岃繖鏍风殑绛夊樊鏁板垪鏈澶氭湁12涓紟
绛旓細鍥绛旓細瑙: (1)鍙互鍏堟帓鍒楅浣,0涓嶈兘鏀惧湪棣栦綅鍏辨湁5绉嶇粨鏋, 鍚庨潰涓変綅鍙鍦ㄤ綑涓嬬殑5涓暟瀛椾笂閫3涓帓鍒. 鍏辨湁5A 5 3 =300; (2)缁勬垚涓嶅悓鐨勫洓浣嶅伓鏁版湁涓ょ鎯呭喌, 褰0鍦ㄤ釜浣嶇殑鍥涗綅鍋舵暟鏈堿 5 3 涓, 褰0涓嶅湪涓綅鏃,鍏堜粠2,4涓涓涓斁鍦ㄤ釜浣,鍐嶄粠浣欎笅鐨勫洓涓暟閫変竴涓斁鍦ㄩ浣, 搴旀湁A 2 ...
绛旓細C
绛旓細324
绛旓細鍥绛旓細21 720 4 15.6
绛旓細鏄剧劧锛屽墿涓嬬殑鏁扮殑涓暟鏄9鐨勫嶆暟锛屽師鍐欏埌鐨勬渶澶ц嚜鐒舵暟绾︽槸19鍙9鍒嗕箣8鐨2鍊嶃傚洜姝わ紝鍘熷啓鍒39锛屽墿浣36涓暟銆傚墿浣欐暟瀛楃殑鍜 = (19+8/9)脳36 = 716 鍘1鍒39鐨勫拰 = (1+39)脳39/2 = 780 鍒掑幓鐨3涓暟鍜 = 780 - 716 = 64 鎿﹀幓鐨勪袱涓川鏁扮殑鍜屾渶澶 = 39+23 = 62 ...
绛旓細绗竴锛36涓ぜ鐗╄鍏8涓瀛愶紝姣忎釜琚嬪瓙鏁伴噺澶т簬绛変簬1涓斿悇涓嶇浉鍚岋紝鑰1+2+3+鈥︹+8=36锛屾墍浠8涓瀛愯鐨勬暟閲忓垎鍒负1锛2锛3锛4锛5锛6锛7锛8锛涚浜岋紝閫夊嚭琚嬪瓙鐨勭ぜ鐗╄兘骞冲潎鍒嗙粰8涓皬鏈嬪弸锛屽氨鏄ぜ鐗╂暟鏄8鐨勫嶆暟锛屾棦涓8鎴16鎴24鎴32銆傝嚦姝わ紝棰樼洰绛夊悓浜庯細浠1锝8杩8涓暟涓紝浠诲彇鍑犱釜锛屼娇寰...
绛旓細鍥绛旓細1.鏉滅敨 2.鈥滄暟鏋濃濋潪鏃╀篃,鏈嫢鈥滀竴鏋濃(鎴栫敤鈥滀竴鏋濃濆彲绐佸嚭鈥滄棭鈥) 3.鈥滈湝鈥濈偣鍑烘鈥滃瓡鈥濊姳鐨勫鑺傚拰鐜;鈥滃瓡鈥濇殫鎸囨鏍戝惈鑻炲緟鏀 4.琛屽鏅氫汉
绛旓細鍏堟妸甯﹀垎鏁板寲鎴愬亣鍒嗘暟鏄13鍒嗕箣178锛岃嚜鐒舵暟鐨勬绘暟蹇呮槸13鐨勫嶆暟锛屽緢鏄庢樉涓鍊嶄笉琛岋紝鍙兘鏄2鍊嶄簡銆傞偅涓亣鍒嗘暟涔樹互26涔嬪悗绛変簬356锛岀敱浜庢槸鍘绘帀浜嗗叾涓殑涓涓暟锛屾墍浠ヨ嚜鐒舵暟鎬绘暟鏄27锛屼粠1涓鐩村姞鍒27鏄378锛岀劧鍚378鍑忓幓356灏辨槸22浜