对于任意两个自然数a和b，定义一种新运算“*”：a*b=a÷b×5＋3,30*6*7等于？ 对于两个不相等的实数a、b，定义一种新的运算如下， a*b=...
\u5bf9\u4e8e\u4efb\u610f\u7684\u4e24\u4e2a\u81ea\u7136\u6570a\u548cb\uff0c\u89c4\u5b9aa\uff0ab\uff1da\uff08a\uff0b1\uff09\uff08a\uff0b2\uff09...\uff08a\uff0bb\uff0d1\uff09\uff0c\u5982\u679c\uff08x\uff0a3\uff09x*3=60,x(x+1)(x+2)=60\u6240\u4ee5x=3
\u2235 a*b= a+b a-b (a+b\uff1e0) \uff0c\u22345*4= 5+4 5-4 =3\uff0c\u22346*\uff085*4\uff09=6*3\uff0c= 6+3 6-3 \uff0c=1\uff0e\u6545\u7b54\u6848\u4e3a\uff1a1\uff0e
a*b=a÷b×5＋3则30*6*7
=(30÷6×5+3)*7
=28*7
=28÷7×5+3
=4×5+3
=23
希望可以帮到你，^_^
解：a*b=a÷b×5＋3，
30*6=28，28*7=23
30*6
=30÷6×5+3
=28
28*7
=28÷7×5+3
=23
30*6*7
=(30/6×5+3)*7
=28*7
=28/7*5+3
=23
23
绛旓細14*2 =14脳2+14/2 =28+7 =35
绛旓細14*2=14脳2+14梅2=28+7=35
绛旓細a*b=a梅b脳5锛3 鍒30*6*7 =(30梅6脳5+3)*7 =28*7 =28梅7脳5+3 =4脳5+3 =23 甯屾湜鍙互甯埌浣狅紝^_^
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绛旓細姣斿锛屾垜浠瀹氫箟涓涓鍙封溾柍鈥濓紝瀵逛簬浠绘剰涓や釜鑷劧鏁癮鍜宐锛鎴戜滑瑙勫畾a鈻砨=a+(a+1)+(a+2)+鈥+锛坅+b-1锛夈傝繖鏄竴涓瓑宸暟鍒楁眰鍜岀殑鍏紡锛屽叾涓椤规槸a锛屾湯椤规槸a+b-1锛岄」鏁版槸b銆傚湪瑙ｉ鏃讹紝鎴戜滑闇瑕佸厛鐞嗚В杩欎釜瀹氫箟锛岀劧鍚庢寜鐓ц繖涓畾涔夎繘琛岃绠椼傛瘮濡傝绠6鈻7锛屾垜浠渶瑕佸厛绠楀嚭6+(6+1)+(6+2)...
绛旓細杩欐槸涓閬撯滄柊瀹氫箟杩愮畻鈥濈殑棰樸1銆佸厛鏍规嵁鈥渁鈻砨=(a-b锛壝2鈥濆仛18鈻砨鈥︹﹁繖閲岀殑a鏄18锛宐鏄氨鏄痓銆18鈻砨 =锛18锛峛锛壝2 =36锛2b 2銆佸湪鏍规嵁鈥渁鈽卋=3a-b梅2,鈥濆仛锛36锛2b锛夆槄20鈥︹﹁繖閲岀殑a灏辨槸锛堬紙36锛2b锛夛紝b鏄20銆傦紙36锛2b锛夆槄20 =3脳锛36锛2b锛夛紞20梅2 =108锛6b锛10 =...
绛旓細鏂瀹氫箟鐨勮繍绠楋紝瀹炶川涓婃槸绗竴涓嚜鐒舵暟涓庡畠鍚庨潰澶氫釜鑷劧鏁拌繛涔橈紝鑷充簬杩炰箻涓暟鍒欑敱绗浜屼釜鑷劧鏁纭畾锛屾墍浠ュ厛鍋氫釜鏇挎崲m=(x*3)锛屽垯鍘熷紡=m*2=3660锛屾牴鎹鍒欙紝m*2=m*(m+1)=3660锛=>m=60銆傝嚜鐒舵暟闆哊鏄寚婊¤冻浠ヤ笅鏉′欢鐨勯泦鍚堬細鈶燦涓湁涓涓厓绱狅紝璁颁綔1銆傗憽N涓瘡涓涓厓绱犻兘鑳藉湪 N 涓壘鍒颁竴涓...
