求初中关于根号的公式。
\u6c42\u4e2d\u5b66\u6839\u53f7\u516c\u5f0f\u221a18\uff1d3\u221a2
\u221a27\uff1d3\u221a3
\u221a48\uff1d4\u221a3
\u221a44\uff1d2\u221a11
\u221a125\uff1d5\u221a5
\u221a153\uff1d3\u221a17
\u221a225\uff1d15
\u221a72\uff1d6\u221a2
3\u221a18\uff0d\u221a32\uff1d9\u221a2-4\u221a2=5\u221a2
5\u221a32\uff0d\u221a200\uff1d20\u221a2-10\u221a2=10\u221a2
2\u221a27\uff0b3\u221a3\uff0d\u221a12\uff1d6\u221a3+3\u221a3-2\u221a3=7\u221a3
2\u221a20\uff0d\u221a45\uff0b\u221a500\uff1d 4\u221a5-3\u221a5+10\u221a5=11\u221a5
\u5316\u7b80\u4e4b\u7c7b\u7684\uff1a
\uff08\u221a3\uff0d\u221a2\uff09\uff08\u221a3\uff0b\u221a2\uff09\uff1d3-2=1(\u5e73\u65b9\u5dee\u516c\u5f0f\uff09
\uff08\u221a3\uff0d\u221a2\uff09\uff08\u221a3\uff0d\u221a20\uff09\uff1d 3-\u221a2*\u221a3-\u221a20*\u221a3+\u221a2*\u221a20=3-\u221a6-2\u221a15+2\u221a10
\uff08\u221a5\uff0d\u221a3\uff09\uff08\u221a5\uff0d\u221a3\uff09\uff1d5+3-2\u221a15=8-2\u221a15\uff08\u5b8c\u5168\u5e73\u65b9\u5dee\uff09
\uff082\u221a5\uff0b1\uff09\uff08\u221a5\uff0d1\uff09\uff1d\uff08\u221a5+1\uff09\uff08\u221a5-1\uff09+\u221a5-1=5-1+\u221a5-1=3+\u221a5\uff08\u5206\u914d\u7387\uff0c\u5e73\u65b9\u5dee\uff09
\uff084\u221a5\uff0d1\uff09\uff082\u221a5\uff0d1\uff09\uff1d(2\u221a5-1)^+2\u221a5(2\u221a5-1)=10+1-4\u221a5+10-2\u221a5=21-6\u221a5(\u5206\u914d\u7387,\u5b8c\u5168\u5e73\u65b9\u5dee)
\uff08\u221a11\uff0d3\uff09\uff08\u221a11\uff0b3\uff09\uff1d 11-3=8(\u5e73\u65b9\u5dee)
\u5f00\u6839\u53f7\u7684\u8ba1\u7b97\u65b9\u6cd5
绛旓細鍒濅腑寮鏍瑰彿鍩虹鍏紡濡備笅锛鈶犫垰ab=鈭歛路鈭歜锛坅鈮0锛宐鈮0锛夛紱鈶♀垰a/b=鈭歛梅鈭歜锛坅鈮0锛宐>0锛夛紱鈶⑩垰a²=|a|锛坅涓轰换鎰忓疄鏁帮級锛涒懀鍒嗘瘝鏈夌悊鍖栵紝鍗冲皢鍚湁浜屾鏍瑰紡鐨勫垎姣嶅寲涓轰笉鍚簩娆℃牴寮忕殑褰㈠紡銆傚叾涓紝鈶犲拰鈶″彲浠ヤ簰鐩镐娇鐢紝鐢ㄤ簬鍖栫畝锛涒憿鏄簩娆℃牴寮忕殑閲嶇偣鍜岄毦鐐癸紝闇瑕佹敞鎰廰鐨勬璐熸э紱鈶ｆ槸...
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绛旓細鍒濅腑寮鏍瑰彿鍩虹鍏紡鏄垰ab=鈭歛路鈭歜锕檃鈮0b鈮0锕銆傝繖涓彲浠ヤ氦浜掍娇鐢紝杩欎釜鏈澶氳繍鐢ㄤ簬鍖栫畝锛屽鈭8=鈭4路鈭2=2鈭2銆2.鈭歛锛廱=鈭歛梅鈭歜锕檃鈮0b锕0锕氬紑浜屾鏍瑰彿锛屽嵆寮骞虫柟杩愮畻濡傛灉涓涓潪璐熸暟x鐨勫钩鏂圭瓑浜巃锛屽嵆x=a锛岋紙a鈮0锛夛紝閭ｄ箞杩欎釜闈炶礋鏁皒鍙仛a鐨勭畻鏈钩鏂规牴銆傚紑鏍瑰彿鏂规硶 灏嗚寮鏂规暟...
绛旓細鈭44锛2鈭11 鈭125锛5鈭5 鈭153锛3鈭17 鈭225锛15 鈭72锛6鈭2 3鈭18锛嶁垰32锛9鈭2-4鈭2=5鈭2 5鈭32锛嶁垰200锛20鈭2-10鈭2=10鈭2 2鈭27锛3鈭3锛嶁垰12锛6鈭3+3鈭3-2鈭3=7鈭3 2鈭20锛嶁垰45锛嬧垰500锛 4鈭5-3鈭5+10鈭5=11鈭5 鍖栫畝涔嬬被鐨勶細锛堚垰3锛嶁垰2锛夛紙鈭3锛嬧垰2锛...
绛旓細1銆佲垰ab=鈭歛路鈭歜锕檃鈮0b鈮0锕 杩欎釜鍙互浜や簰浣跨敤銆傝繖涓渶澶氳繍鐢ㄤ簬鍖栫畝锛屽锛氣垰8=鈭4路鈭2=2鈭2銆2銆佲垰a锛廱=鈭歛梅鈭歜锕檃鈮0b锕0锕氥3銆佲垰a²=|a|锛堝叾瀹炲氨鏄瓑浜庣粷瀵瑰硷級杩欎釜鐭ヨ瘑鐐规槸浜屾鏍瑰紡閲嶇偣涔熸槸闅剧偣銆傚綋a锛0鏃讹紝鈭歛²=a锛堢瓑浜庡畠鐨勬湰韬級銆傚綋a=0鏃讹紝鈭歛²...
绛旓細鏍瑰彿鐨杩愮畻鍏紡濡備笅锛1銆佸钩鏂规牴鍏紡锛歛^锛1/2锛=鈭歛锛岃繖涓叕寮忚〃绀哄涓涓暟鎴栦唬鏁板紡杩涜寮鏂硅繍绠楋紝鍗虫眰鍑哄畠鐨勫钩鏂规牴銆備緥濡傦紝鈭4=2锛屽洜涓2鐨勫钩鏂规槸4銆傚钩鏂规牴鏄竴涓暟鍦ㄥ疄鏁拌寖鍥村唴鐨勫敮涓瑙ｏ紝鍙互鐢ㄨ繖涓暟琛ㄧず鎵鏈夋鏁板拰0鐨勫钩鏂规牴銆傚浜庢鏁癮锛屽畠鐨勫钩鏂规牴鏈変袱涓紝瀹冧滑浜掍负鐩稿弽鏁帮紝鍏朵腑姝ｇ殑骞虫柟鏍...
绛旓細锛1锛2鈭2 +3鈭2=5鈭2锛堟牴鍙烽噷闈㈢殑鏁伴兘鏄2锛屽彲浠ョ浉鍔狅級锛2锛2鈭3 +3鈭2锛堟牴鍙烽噷闈㈢殑鏁颁竴涓槸3锛屼竴涓槸2锛屼笉鍚屼笉鑳界浉鍔狅級锛3锛夆垰5+鈭20=鈭5+2鈭5=3鈭5锛堟牴鍙峰唴鐨勬暟铏界劧涓嶅悓锛屼絾鏄彲浠ュ寲鎴愮浉鍚岋紝鍙互鐩稿姞锛夛紙4锛3鈭2-2鈭2=鈭2 锛5锛夆垰20-鈭5=2鈭5-鈭5=鈭5 鏍瑰彿鐨涔橀櫎娉...
绛旓細寮鏍瑰彿鍩虹鍏紡锛氣垰a銆傚鏋滀竴涓潪璐熸暟x鐨勫钩鏂圭瓑浜巃锛屽嵆x=a锛岋紙a鈮0锛夛紝閭ｄ箞杩欎釜闈炶礋鏁皒鍙仛a鐨勭畻鏈钩鏂规牴銆傛眰涓涓潪璐熸暟a鐨勫钩鏂规牴鐨勮繍绠楀彨鍋氬紑骞虫柟锛屽嵆寮鏍瑰彿鐨勫叕寮涓衡垰a銆傛牴鍙锋槸涓涓暟瀛︾鍙枫傚紑浜屾鏍瑰彿锛屽嵆寮骞虫柟杩愮畻锛氬鏋滀竴涓潪璐熸暟x鐨勫钩鏂圭瓑浜巃锛屽嵆x3=a锛(a鈮0)锛岄偅涔堣繖涓潪璐熸暟x鍙仛...
绛旓細鈶㈠埄鐢ㄤ簩娆℃牴寮忕殑鎬ц川姹傚瓧姣嶏紙鎴栦唬鏁板紡锛夌殑鏈灏忥紙澶э級鍊硷紱鈶ｅ埄鐢ㄥ钩鏂瑰樊鍏紡杩涜鍒嗘瘝鏈夌悊鍖栫殑璁＄畻姹傚硷紱鍐嶈呭氨鏄浉鍏虫渶绠浜屾鏍瑰紡銆佸悓绫讳簩娆℃牴寮忕瓑鐩稿叧鐨勫熀纭鐭ヨ瘑鑰冨療锛屾牴寮忔ц川 鍦ㄥ疄鏁拌寖鍥村唴锛氾紙1锛夊伓娆鏍瑰彿涓嬩笉鑳戒负璐熸暟锛屽叾杩愮畻缁撴灉涔熶笉涓鸿礋銆傦紙2锛夊娆℃牴鍙蜂笅鍙互涓鸿礋鏁般備笉闄愪簬瀹炴暟锛屽嵆鑰冭檻...
绛旓細姣斿121灏辨槸瀹屽叏骞虫柟鏁帮紝 11 x 11= 121锛屽彲鐩存帴鎶鏍瑰彿绉绘帀锛屽啓鎴11灏卞彲銆傝鎯虫洿绠鍗曠偣锛岃璁颁綇涓嬮潰鐨勫ご鍗佷簩涓暟鐨勫畬鍏ㄥ钩鏂规暟锛1 x 1 = 1锛2 x 2 = 4锛3 x 3 = 9锛4 x 4 = 16锛5 x 5 = 25锛6 x 6 = 36锛7 x 7 = 49锛8 x 8 = 64锛9 x 9 = 81锛10 x 10 = ...
