定义新运算:若a△b=5a+3b,当x△10=40时,x△1\3的值是多少? 定义新运算：规定a△b=5a+3b,当x△10=40时，x△...
\u5b9a\u4e49\u65b0\u8fd0\u7b97\uff1a\u89c4\u5b9aa\u25b3b=5a+3b,\u5f53x\u25b310=40\u65f6\uff0cx\u25b31/3\u7684\u503c\u662f\u591a\u5c11\uff1f\u8c01\u6709\u76f8\u5173\u7684\u89c6\u9891\u7f51\u7ad9\u2235a\u25b3b=5a+3b \u2234x\u25b310=5x+3\u00d710
5x+3\u00d710=40
\u30005x=40-3\u00d710
\u30005x=10
\u3000\u3000 x=10\u00f75
\u3000\u3000 x=2
x\u25b31/3=2\u25b31/3=2\u00d75+3\u00d71/3=10+1=11
\u56e0\u4e3ax\u25b310=5x+30 \u800c\u5b83\u53c8\u7b49\u4e8e40\uff0c\u5373 5x+30=40 \u6240\u4ee5x=2 \u90a3\u4e48x\u25b31/3=2\u25b31/3=5*2+3*1/3=11
\u8bb0\u5f97\u91c7\u7eb3\u554a
5x+30=40
x=2
--------
x△(1/3)
=2△(1/3)
=10 + 1
=11
xΔ10=5*x+3*10=40 ==》 x=2;
带入后面的式子
5x+3*1/3=10+1=11;
答案是11,,
绛旓細杩欑棰樼洰锛岀涓姝ラ兘鏄鍏紡锛岃屼笖涓瀹氳娉ㄦ剰娆″簭 瑙勫畾a鈻砨=a脳4+b脳5 璁＄畻:5鈻8 5鈻8=5*4+8*5=60
绛旓細杩欎釜寰堢畝鍗曞晩.a鈻砨=2a+b,濡7鈻5+2脳7+5=19,---杩欎釜搴旇鏄7鈻5=2脳7+5=19鍚?璁＄畻锛氣憼9鈻8,鈶15鈻12 9鈻8=2脳9+8=26 15鈻12=2脳15+12=42 瀹氫箟杩愮畻鍙璺熺潃棰樻剰灏嗙鍙锋敼杩囨潵灏辨槸浜,鏄腑瀛﹁冭瘯缁忓父鑰冪殑棰樺瀷.涔熷氨鏄涓婇潰鐨勨柍鏄灏嗗墠闈㈢殑鏁懊2鍚庡姞涓婂悗闈㈢殑鏁.杩欎釜涓嶇煡閬撹繖涔...
绛旓細瀹氫箟鏂拌繍绠涓殑浠讳綍鐗规畩璐熷彿閮芥病鏈夌‘瀹氱殑鍚箟锛屽彧鏈夊湪鍏蜂綋棰樼洰涓粰鍑哄畠鐨勫畾涔夊悗锛屾墠鏈夌壒瀹氱殑鍚箟銆傛瘮濡傞榿涓嬫墍鎸囩殑鈥溾柍鈥濓紝鏈韩涓嶄唬琛ㄤ换浣曡繍绠楋紱浣嗚嫢瑙勫畾A鈻矪=(A+B)/2锛岄偅涔堝畠灏辫〃绀烘眰涓ゆ暟鐨勫钩鍧囨暟锛岃嫢瑙勫畾A鈻矪=(A+B)²锛岄偅涔堝畠灏辫〃绀轰袱鏁板拰鐨勫钩鏂广傛墍浠ュ畠鐨勫惈涔夎鐪嬪叿浣撻鐩殑璇存槑銆
绛旓細銆愮瘒浜屻戜緥棰1.瑙勫畾锛欰鈼婤琛ㄧずA銆丅涓緝澶х殑鏁帮紝A鈻矪琛ㄧずA銆丅涓緝灏忕殑鏁.鑻(A鈼5+B鈻3)脳(B鈼5+A鈻3)=96锛屼笖A銆丅鍧囦负澶т簬0鐨勮嚜鐒舵暟锛孉脳B鐨勬墍鏈夊彇鍊兼湁()涓瀹氫箟鏂拌繍绠瑙ｆ瀽锛氬叡5绉嶏紝鍒嗙被璁ㄨ锛岀敱浜庨鐩腑鎵瑕佹眰鐨勫畾涔夋柊杩愮畻鐨勭鍙锋槸杈冨ぇ鐨勬暟涓庤緝澶х殑鏁帮紝鍒欏浜嶢鎴栬匓鏈3绫讳笉鍚...
绛旓細鍗砤脳b+a+b=29 a脳1+a+1=29 鎵浠2a=29-1 鎵浠=14 鎶奱=14浠ｅ叆绗簩琛屽嵆寰 14=x鈻2 浠=x b=2 鍗砤脳b+a+b=14 a脳2+a+2=14 鎵浠3a=14-2 鎵浠=4 杩欑棰樺氨鏄缁冧綘鎶婃彙鏁翠綋鐨勮兘鍔涳紝鍗冲浣曟妸涓涓暣浣撳垎瑙ｆ垚涓瀹氱粏鍖栫殑涓綋锛岃繖浜涘皬涓綋鍙堟弧瓒虫墍缁欑殑鏉′欢锛屽氨鏄В棰樼殑鎬濊矾...
绛旓細瑙勫畾鈻充负涓绉鏂拌繍绠,a鈻砨=4a-b/2,濡3鈻2=4x3-2/2,5鈻3=4x5-3/2銆傚凡鐭鈻(6鈻4)=9,姹倄鐨勫兼壂鎻忎簩缁寸爜涓嬭浇 涓嬭浇鐭ラ亾APP10鍒嗛挓鏈夐棶蹇呯瓟! 寤鸿:鍙娇鐢ㄥ井淇＄殑鈥滄壂涓鎵濆姛鑳芥壂鎻忎笅杞 鍒嗕韩鍒: 2013-06-08 10:22 鎻愰棶鑰呴噰绾 a鈻砨=4a-b/2x鈻(6鈻4)=9鍏堢畻(6鈻4)=4^6-4/2=22鎺ㄥ嚭x鈻...
绛旓細2螖x=5*2+2*x=10+2x 鐢遍鎰忓緱=28鎵浠ヨВ寰梮=7 杩欐槸涓绉瀹氫箟杩愮畻绗﹀彿鐨勯鍨嬶紝浣犲彧瑕佺湅娓呴鐩墍璇寸殑杩愮畻瑙勫垯锛屾妸瑕佹眰鐨勫紡瀛愭寜鐓ц鍒欎唬鍏ュ嵆鍙
绛旓細鏂板畾涔夎繍绠鏄竴绉嶄汉涓虹殑銆佷复鏃舵х殑杩愮畻锛屼娇鐢ㄧ壒娈婄殑杩愮畻绗﹀彿琛ㄧず鐗瑰畾鐨勬剰涔夈傝В绛
绛旓細鐢变笂闈涓渚嬬湅鍑,瀹氫箟鏂拌繍绠閫氬父鏄敤鏌愪簺鐗规畩绗﹀彿琛ㄧず鐗瑰畾鐨勮繍绠楁剰涔夈傛柊杩愮畻浣跨敤鐨勭鍙峰簲閬垮厤浣跨敤璇炬湰涓婃槑纭畾涔夋垨宸茬粡绾﹀畾淇楁垚鐨勭鍙,濡+,-,脳,梅,<,>绛,浠ラ槻姝㈠彂鐢熸贩娣,鑰岃〃绀烘柊杩愮畻鐨勮繍绠楁剰涔夐儴鍒,搴斾娇鐢ㄩ氬父鐨勫洓鍒欒繍绠楃鍙枫傚渚1涓,a*b=a脳b-a-b,鏂拌繍绠楃鍙蜂娇鐢ㄢ*鈥,鑰岀瓑鍙峰彸杈规柊杩愮畻鐨勬剰涔夊垯鐢ㄥ洓...
绛旓細瑙ｉ鍏抽敭锛氳姝ｇ‘鐞嗚В鏂拌繍绠鐨勬剰涔夛紝骞朵弗鏍兼寜鏂板畾涔夌殑瑕佹眰锛屽皢鏁板间唬鍏ユ柊瀹氫箟鐨勫紡瀛愯繘琛岃繍绠椼傛敞鎰忕偣锛氭柊瀹氫箟鐨勮繍绠椾笉涓瀹氱鍚堜氦鎹㈠緥锛岀粨鍚堝緥鍜屽垎閰嶅緥銆傛瘮濡傦紝a&b=2a+3b,姹傦紙1锛2&3&4 锛2锛2&4&3 瑙ｏ細锛1锛2&3=2脳2+3脳3=13 13&4=2脳13+3脳4=38 鈭2&3&4=38 锛2锛2&4=2脳2...
