2.规定一种新的运算“＊”：对于任意有理数x.y，满足x*y=x-y+xy.例如：3＊2
\u73b0\u89c4\u5b9a\u4e00\u79cd\u8fd0\u7b97\uff1ax*y=xy+y-x\uff0c\u5176\u4e2dx\uff0cy\u4e3a\u6709\u7406\u6570\uff0c\u4f8b\u5982\uff1a4*3=4*3+3-4=11\uff0c\u5219x*y+\uff08y-x\uff09*y\u7b49\u4e8e\uff08\uff09y+y\u5e73\u65b9
\u56e0\u4e3ax*y=xy+y-x,(y-x\uff09*y=y\u5e73\u65b9-xy+y-y+x
\u6240\u4ee5x*y+(y-x)*y
=xy+y-x+y\u5e73\u65b9-xy+y-y+x
=y+y\u5e73\u65b9
\u89e3\uff1a\uff081\uff092\u203b\uff08-4\uff09=2\u00d7\uff08-4\uff09+1=-7
\uff082\uff09\u2235 1\u203b4=1\u00d74+1=5
\u2234\uff081\u203b4\uff09\u203b\uff08-2\uff09=5\u203b\uff08-2\uff09=5\u00d7\uff08-2\uff09+1=-9
\uff083\uff09\u2235a\u203b\uff08b+c)=a(b+c)+1=ab+ac+1\uff0ca\u203bb+a\u203bc=ab+1+ac+1=ab+ac+2
\u2234a\u203b\uff08b+c)=a\u203bb+a\u203bc-1
2*1=2-1+2X1=3
3
3
绛旓細绛旀鏄6銆備互涓嬫槸杩愮畻娉曞垯鐨勭浉鍏充粙缁锛氳繍绠娉曞垯锛圓lgorithm锛夛紝涓鸿揪鍒颁竴涓棶棰樼殑瑙ｅ喅鏂规鏄庣‘瀹氫箟鐨勮鍒欐垨杩囩▼銆傜綉缁滀腑锛屽熀鏈笂銆傝繍绠楁硶鍒欎竴鑸鐢ㄤ簬纭畾鐗瑰畾婧愬埌鐗瑰畾鐩殑鍦扮殑鏈浣宠繍杈撹矾鐢便傝矾鐢卞櫒鍜屼氦鎹㈡満鐨勬帓瀵圭畻娉曞纭畾鍒嗙粍鐨勫缃熷害鏄緢鍏抽敭鐨勩傛暟瀛﹁繍绠楄鍒欙紝瀹屾垚杩愮畻锛屽緱鍑虹粨鏋滅殑鏂规硶銆佺▼搴忔垨閫斿緞閫氬父鍙...
绛旓細=0*2 =0-2+1 =-1
绛旓細鏍规嵁鍏紡a鈥籦=a-b+1 鍒2鈥3=2-3+1=0 鎵浠1鈥伙紙2鈥3锛=1鈥0=1-0+1=2
绛旓細1*锛-2锛=1-锛-2锛+1=4
绛旓細瑙勫畾涓绉嶆柊鐨勮繍绠锛氬浜庝换鎰忎袱涓湁鐞嗘暟a,b,鏈塧+b=ab-a梅b,鍒欏紡瀛愶紙-8锛+锛-2锛=16-4=12
绛旓細1锛婏紙2锛3锛=1锛婏紙2+3+1锛=1锛0=1-0+1=2
绛旓細锛15锛=2銆傛墍浠ュ師寮忕瓑浜6銆傚氨鏄粠鏈灏忕殑绱犳暟寮濮嬫壘涓婃壘锛屾壘鍒扮殑绗竴涓笉鏄痭鐨勫洜鏁扮殑鏁帮紝锛60锛=7 ===>鍥犱负2锛3锛5铏界劧閮芥槸绱犳暟锛屼絾涔熸槸60鐨勫洜鏁帮紝鍐嶅線涓婂氨鏄7浜嗭紝锛84锛=5銆傜浉鍏虫ц川 鏁撮櫎锛氳嫢鏁存暟a闄や互闈為浂鏁存暟b锛屽晢涓烘暣鏁帮紝涓斾綑鏁颁负闆讹紝 鎴戜滑灏辫a鑳借b鏁撮櫎锛堟垨璇碽鑳芥暣闄锛夛紝璁...
绛旓細1*(2*5)=1*(2-5+1)=1*(-2)=1-(-2)+1 =4
绛旓細瑙ｏ細m鈽唍=mn+m-n ,褰搈涓簒锛宯涓4鏃 x鈽4=14 4X+X-4=-14 5X=-14=4 5X=-10 X=-2
绛旓細瑙ｏ細(-8)鈯(-2)=(-8)x(-2)- (-8)梅(-2)=16-4 =12 濡傝繕涓嶆槑鐧斤紝璇风户缁拷闂傚鏋滀綘璁ゅ彲鎴戠殑鍥炵瓟锛岃鍙婃椂鐐瑰嚮銆愰噰绾充负婊℃剰鍥炵瓟銆戞寜閽 鎵嬫満鎻愰棶鐨勬湅鍙嬪湪瀹㈡埛绔彸涓婅璇勪环鐐广愭弧鎰忋戝嵆鍙
