(3+4)乘2等于3乘2+4乘2画图,表示 (3+4i)乘(2+3i)=??? 求答案!!!
\u8ba1\u7b9734\u00d72\uff0c4\u4e582\u5f97\uff08\uff09\uff0c\u8868\u793a\uff08\uff09\u4e2a\uff08\uff09\uff0c3\u4e582\u5f97\uff08\uff09\uff0c\u8868\u793a\uff08\uff09\u4e2a\uff08\uff09\u3002\u8ba1\u7b9734\u00d72\uff0c4\u4e582\u5f97\uff088\uff09\uff0c\u8868\u793a\uff082\uff09\u4e2a\uff084\uff09\uff0c3\u4e582\u5f97\uff0860\uff09\uff0c\u8868\u793a\uff082\uff09\u4e2a\uff0830\uff09\u3002
34\u00d72\uff1d60\uff0b8\uff1d68
\u5bf9\u5417\uff1f
\uff083+4i)\u4e58(2+3i)=6+9i+8i+12*(-1)=17i-6;
用长方形的面积来表示即可:
绛旓細34涔樹互2锛屽厛绠4涔樹互2鐨勭Н琛ㄧず锛8 锛夛紝鍐嶇畻3涔樹互2鐨勭Н琛ㄧず锛60 锛夛紝鐒跺悗鎶婏紙8锛夊拰锛60锛夊姞璧锋潵锛8+60=68
绛旓細6脳2=4脳3=3脳4=2脳6銆
绛旓細鍙互鍏堢敾3缁勫悓鏍风殑4涓浘褰紝鏈鍚庣粨璁涔2銆傚洜姝ゅ彲寰楃煡涓涓竴缁勪负12涓浘褰紝鍏2缁勶紝鎵浠ヤ竴鍏辨槸24涓浘褰傜敾鍥炬硶鏄畻绠渚夸箻娉曠殑甯哥敤鏂规硶锛屽彲浠ョ洿瑙傚緱鍑虹粨璁恒
绛旓細瑙f瀽锛3鍒嗕箣2涔樹互4鍒嗕箣3鏄垎鏁颁箻浠ュ垎鏁扮殑涔樻硶锛岃繍绠楃殑鏃跺欙紝鑳界害鍒嗙殑瑕佸厛绾﹀垎鍐嶈绠椼傚厛灏嗗垎瀛2鍜4绾﹀垎锛涘啀灏嗗垎瀛3鍜屽垎姣3绾﹀垎锛岀劧鍚庡垎瀛愮浉涔樺仛鍒嗗瓙锛屽垎姣嶇浉涔樺仛鍒嗘瘝銆3鍒嗕箣2涔樹互4鍒嗕箣3 =锛2脳3锛/(3脳4锛=1/2
绛旓細璁$畻鍣ㄧ殑缁撴灉濂藉儚瓒呭嚭浜嗘垜鐨勮鐭ヨ寖鍥达紝浣嗘槸鎴戜滑鍙互鍙戠幇瀹冩槸鏈夎寰嬬殑锛2脳1=2 2脳2=4 4脳2=8 8脳2=16 16脳2=32 32脳2=64 64脳2=128 2.4.8.6.2.4.8.6.杩欐牱鐨勫惊鐜 鐒跺悗324梅4=81 鍒氬ソ闄ゆ暣锛屾墍浠324涓2鎯涔鏈熬鏄6 鍒氬垰绛斿畬鐪嬩簡涓閬嶅叾浠栦汉绛旂殑锛屾垜濂藉儚蹇樹簡绗竴涓2锛屾垜涓嶇‘瀹...
绛旓細鍒楀紡濡備笅锛820鍐欏湪涓婇潰锛43鍐欏湪涓嬮潰锛屼箻鍙峰啓鍦ㄥ乏杈癸紝鍏堢敤3鍒嗗埆涔樹互0鍜2鍜8,0涔樹互浠讳綍鏁伴兘绛変簬0锛2涔樹互3绛変簬6,3涔樹互8绛変簬24锛屽啀鐢4涔樹互0鍜2鍜8,4涔樹互0绛変簬0,4涔樹互2绛変簬8,4涔樹互8绛変簬32锛屾渶鍚庢妸涓や釜鏁扮浉鍔犲氨绛変簬35260浜嗐備笅闈㈡槸涔樻硶绔栧紡鍘熷垯锛氫竴銆佸浣嶆暟涔樹竴浣嶆暟鐨勭珫寮忚绠1銆 鐩稿悓鏁颁綅瀵归綈2...
绛旓細3/4x2=3/2
绛旓細3涔樹互2鍜3涔2涓よ呭惈涔変笉鍚屻1銆3涔樹互2琛ㄧず锛氳〃绀涓涓浜鐩稿姞鐨勫拰鏄灏戙傝〃绀轰负锛2+2+2=6 2銆3涔2琛ㄧず锛氫簩涓笁鐩稿姞鐨勫拰鏄灏戙傝〃绀轰负锛3+3=6 鐢变簬涔樻硶鏈変氦鎹㈠緥锛屽畠浠殑缁撴灉鏄竴鏍风殑锛岃櫧寰楁暟鐩稿悓浣嗘剰涔変笉鍚屻備袱涓暟鐩镐箻锛屼氦鎹㈠洜鏁扮殑浣嶇疆锛屽畠浠殑绉笉鍙橈紝鐢ㄥ瓧姣嶈〃绀篴脳b=bxa銆
绛旓細2011? =2011*2010*2009鈥︹2012锛=2012*2011*2010*鈥︹2012锛熸瘮2011锛熷涓涓暟瀛2012 鎵浠 2011锛熼櫎浠2012锛 绛変簬2012鍒嗕箣1 琛ㄧず涔 绁濆涔犺繘姝ワ紝璁板緱閲囩撼鍝
绛旓細98锛佸垎涔100锛=100脳99=9900