2开根号等于多少？ 根号下2等于多少 怎么计算的求过程
2\u7684\u5f00\u6839\u53f7\u662f\u591a\u5c11\uff1f2\u5f00\u6839\u53f7\u5c31\u662f\u6c422\u7684\u7b97\u672f\u5e73\u65b9\u6839\uff0c\u90a3\u4e48\u5c31\u662f\u7b97\u5f0f\u221a2\u22481.414
\u221a2= 1.4142135623731 \u2026\u2026
\u221a2 \u662f\u4e00\u4e2a\u65e0\u7406\u6570\uff0c\u5b83\u4e0d\u80fd\u8868\u793a\u6210\u4e24\u4e2a\u6574\u6570\u4e4b\u6bd4\uff0c\u662f\u4e00\u4e2a\u770b\u4e0a\u53bb\u6beb\u65e0\u89c4\u5f8b\u7684\u65e0\u9650\u4e0d\u5faa\u73af\u5c0f\u6570\u3002\u65e9\u5728\u53e4\u5e0c\u814a\u65f6\u4ee3\uff0c\u4eba\u4eec\u5c31\u53d1\u73b0\u4e86\u8fd9\u79cd\u5947\u602a\u7684\u6570\uff0c\u8fd9\u63a8\u7ffb\u4e86\u53e4\u5e0c\u814a\u6570\u5b66\u4e2d\u7684\u57fa\u672c\u5047\u8bbe\uff0c\u76f4\u63a5\u5bfc\u81f4\u4e86\u7b2c\u4e00\u6b21\u6570\u5b66\u5371\u673a\u3002
\u6839\u53f7\u4e8c\u4e00\u5b9a\u662f\u4ecb\u4e8e1\u4e0e2\u4e4b\u95f4\u7684\u6570\u3002
\u7136\u540e\u518d\u8ba1\u7b971.5\u7684\u5e73\u65b9\u5927\u5c0f\u2026\u2026\u4e5f\u5c31\u662f\u4e00\u4e2a\u7528\u4e8c\u5206\u6cd5\u6c42\u65b9\u7a0bx^2=2\u8fd1\u4f3c\u89e3\u7684\u8fc7\u7a0b\u3002
\u6269\u5c55\u8d44\u6599\u73b0\u4ee3\uff0c\u6211\u4eec\u90fd\u4e60\u4ee5\u4e3a\u5e38\u5730\u4f7f\u7528\u6839\u53f7(\u5982 \u7b49)\uff0c\u5e76\u611f\u5230\u5b83\u6765\u65e2\u7b80\u6d01\u53c8\u65b9\u4fbf\u3002\u90a3\u4e48\uff0c\u6839\u53f7\u662f\u600e\u6837\u4ea7\u751f\u548c\u6f14\u53d8\u6210\u8fd9\u79cd\u6837\u5b50\u7684\u5462?
\u53e4\u65f6\u5019\uff0c\u57c3\u53ca\u4eba\u7528\u8bb0\u53f7"\u250c"\u8868\u793a\u5e73\u65b9\u6839\u3002\u5370\u5ea6\u4eba\u5728\u5f00\u5e73\u65b9\u65f6\uff0c\u5728\u88ab\u5f00\u65b9\u6570\u7684\u524d\u9762\u5199\u4e0aka\u3002\u963f\u62c9\u4f2f\u4eba\u7528 \u8868\u793a \u30021840\u5e74\u524d\u540e\uff0c\u5fb7\u56fd\u4eba\u7528\u4e00\u4e2a\u70b9"."\u6765\u8868\u793a\u5e73\u65b9\u6839\uff0c\u4e24\u70b9".."\u8868\u793a4\u6b21\u65b9\u6839\uff0c\u4e09\u4e2a\u70b9"..."\u8868\u793a\u7acb\u65b9\u6839\uff0c\u6bd4\u5982\uff0c.3\u3001..3\u3001...3\u5c31\u5206\u522b\u8868\u793a3\u7684\u5e73\u65b9\u6839\u30014\u6b21\u65b9\u6839\u3001\u7acb\u65b9\u6839\u3002\u5230\u5341\u516d\u4e16\u7eaa\u521d\uff0c\u53ef\u80fd\u662f\u4e66\u5199\u5feb\u7684\u7f18\u6545\uff0c\u5c0f\u70b9\u4e0a\u5e26\u4e86\u4e00\u6761\u7ec6\u957f\u7684\u5c3e\u5df4\uff0c\u53d8\u6210" \u221a\uffe3"\u3002
1525\u5e74\uff0c\u8def\u591a\u5c14\u592b\u5728\u4ed6\u7684\u4ee3\u6570\u7740\u4f5c\u4e2d\uff0c\u9996\u5148\u91c7\u7528\u4e86\u6839\u53f7\uff0c\u6bd4\u5982\u4ed6\u5199\u662f2\uff0c\u662f3\uff0c\u5e76\u7528\u8868\u793a\uff0c\u4f46\u662f\u8fd9\u79cd\u5199\u6cd5\u672a\u5f97\u5230\u666e\u904d\u7684\u8ba4\u53ef\u4e0e\u91c7\u7eb3\u3002
\u76f4\u5230\u5341\u4e03\u4e16\u7eaa\uff0c\u6cd5\u56fd\u6570\u5b66\u5bb6\u7b1b\u5361\u5c14(1596-1650\u5e74)\u7b2c\u4e00\u4e2a\u4f7f\u7528\u4e86\u73b0\u4eca\u7528\u7684\u6839\u53f7"\u221a"\u3002\u5728\u4e00\u672c\u4e66\u4e2d\uff0c\u7b1b\u5361\u5c14\u5199\u9053:"\u5982\u679c\u60f3\u6c42n\u7684\u5e73\u65b9\u6839\uff0c\u5c31\u5199\u4f5c\u00b1\u221an\uff0c\u5982\u679c\u60f3\u6c42n\u7684\u7acb\u65b9\u6839\uff0c\u5219\u5199\u4f5c³\u221an\u3002"
2开根号等于1.414213562373095048801688724209698078569671875376948073176679737990732478462107038850387534327641572735013846230912290724924836055850737212644121497099935831413222665927505592755799950501152782060571470109559971605970274534596862014728517418640889198609552329230484308714321450839762603627995251407989687253396546……(后面实在太多了)
根号2一般取值1.414
就是 1.41421356
根号2
绛旓細鏍瑰彿2绾︾瓑浜1銆414 鏍瑰彿3绾︾瓑浜1銆732 鏍瑰彿5绾绛変簬2銆236銆傝阿璋傘傘
绛旓細2寮鏍瑰彿灏鏄姹2鐨勭畻鏈钩鏂规牴锛岄偅涔堝氨鏄畻寮忊垰2鈮1.414
绛旓細鏍瑰彿2绾︾瓑浜1.414锛屾牴鍙3绾︾瓑浜1.732锛屾牴鍙5绾绛変簬2.232锛屾牴鍙7绾︾瓑浜2.646銆傛牴寮忎箻闄ゆ硶娉曞垯锛1銆佸悓娆℃牴寮忕浉涔橈紙闄わ級锛屾妸鏍瑰紡鍓嶉潰鐨勭郴鏁扮浉涔橈紙闄わ級锛屼綔涓虹Н锛堝晢锛夌殑绯绘暟锛涙妸琚紑鏂规暟鐩镐箻锛堥櫎锛夛紝浣滀负琚紑鏂规暟锛屾牴鎸囨暟涓嶅彉锛岀劧鍚庡啀鍖栨垚鏈绠鏍瑰紡銆2銆侀潪鍚屾鏍瑰紡鐩镐箻锛堥櫎锛夛紝搴斿厛鍖栨垚鍚屾鏍瑰紡鍚庯紝...
绛旓細鏍瑰彿2绾绛変簬1.4142135623730950488
绛旓細鏍瑰彿2绾绛変簬1.414銆鏍瑰彿浜涓瀹氭槸浠嬩簬1涓2涔嬮棿鐨勬暟,鐒跺悗鍐嶈绠1.5鐨勫钩鏂瑰ぇ灏,缁忚繃鍙嶅浠ｆ暟杩涘幓杩涜璁＄畻,涔熷氨鏄竴涓敤浜屽垎娉曟眰鏂圭▼x^2=2杩戜技瑙ｇ殑杩囩▼銆傛牴鍙蜂簩涓瀹氭槸浠嬩簬1涓2涔嬮棿鐨勬暟锛岀劧鍚庡啀璁＄畻1.5鐨勫钩鏂瑰ぇ灏忥紝缁忚繃鍙嶅浠ｆ暟杩涘幓杩涜璁＄畻锛屼篃灏辨槸涓涓敤浜屽垎娉曟眰鏂圭▼x^2=2杩戜技瑙ｇ殑杩囩▼銆鏍瑰彿鏄鐢ㄦ潵...
绛旓細鈭2鈮1.414 鈭3鈮1.732 鈭5鈮2.236 鏍瑰彿鏄涓涓暟瀛︾鍙枫傛牴鍙锋槸鐢ㄦ潵琛ㄧず瀵逛竴涓暟鎴栦竴涓唬鏁板紡杩涜寮鏂硅繍绠楃殑绗﹀彿銆傝嫢aⁿ=b锛岄偅涔坅鏄痓寮n娆℃柟鐨刵娆℃柟鏍规垨a鏄痓鐨1/n娆℃柟銆傚紑n娆℃柟鎵嬪啓浣撳拰鍗板埛浣撶敤琛ㄧず锛岃寮鏂圭殑鏁版垨浠ｆ暟寮忓啓鍦ㄧ鍙峰乏鏂光垰锟ｇ殑鍙宠竟鍜岀鍙蜂笂鏂逛竴妯儴鍒嗙殑涓嬫柟鍏卞悓鍖呭洿...
绛旓細鏍瑰彿2鏄涓涓棤鐞嗘暟锛屽畠涓嶈兘琛ㄧず鎴愪袱涓暣鏁颁箣姣旓紝鏄竴涓湅涓婂幓姣棤瑙勫緥鐨勬棤闄愪笉寰幆灏忔暟銆傛棭鍦ㄥ彜甯岃厞鏃朵唬锛屼汉浠氨鍙戠幇浜嗚繖绉嶅鎬殑鏁般傚湪鏍瑰紡杩愮畻涓簲娉ㄦ剰浠ヤ笅鍑犵偣锛1銆佹牴寮忚繍绠楁槸鍦ㄨ繍绠楁湁鎰忎箟鐨勬潯浠朵笅杩涜鐨勶紝涓鑸父鐪佹帀杩愮畻杩囩▼涓殑鏉′欢涓嶅啓銆2銆佹牴寮忚繍绠楃殑缁撴灉鑻ヤ粛鍚湁鏍瑰紡锛屼竴鑸鍖栦负鏈绠鏍瑰紡銆...
绛旓細瑕佺煡閬撴庝箞寮骞虫柟鏍癸紝浣犲厛瑕佹竻妤氱殑鐭ラ亾骞虫柟鏍圭殑鍏紡銆1銆佸埄鐢ㄥ叕寮忓彲鐭ワ紝2鐨勫钩鏂逛篃灏鏄2*2=4锛屾墍浠モ垰4 寮鏂瑰悗灏=2銆傚悓鐞嗗彲鐭モ垰9=3锛屸垰169=13 2銆佲垰2 寮鏂=1.414锛堜繚鐣欏皬鏁扮偣鍚庝笁浣嶏級銆傚彲浠ユ牴鎹绠楀浘璁＄畻鍑烘潵銆
绛旓細1.414 鏍瑰彿浜涓瀹氭槸浠嬩簬1涓2涔嬮棿鐨勬暟锛岀劧鍚庡啀璁＄畻1.5鐨勫钩鏂瑰ぇ灏忥紝缁忚繃鍙嶅浠ｆ暟杩涘幓杩涜璁＄畻锛屼篃灏辨槸涓涓敤浜屽垎娉曟眰鏂圭▼x^2=2杩戜技瑙ｇ殑杩囩▼銆鏍瑰彿鏄涓涓暟瀛︾鍙凤紝鏍瑰彿鏄敤鏉ヨ〃绀哄涓涓暟鎴栦竴涓唬鏁板紡杩涜寮鏂硅繍绠楃殑绗﹀彿銆傝嫢a?=b锛岄偅涔坅鏄痓寮n娆℃柟鐨刵娆℃柟鏍规垨a鏄痓鐨1/n娆℃柟銆傚紑n娆℃柟鎵嬪啓浣撳拰...
绛旓細鏄鍟 杩欐槸鎸囨暟鐨勪箻闄ゆ硶 鈭氣垰2=2鐨勶紙1/2脳1/2锛夋鏂=2鐨1/4娆℃柟=2鐨勫紑4娆℃柟鈥︹
