启东中学数学作业38的答案
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答案
绛旓細http://www.vtigu.com/books/385/385_3_2_105.html 鍗峰瓙鍜岃鏈瘯棰橀兘鍦ㄤ笂闈 绛旀涔熷湪涓婇潰
绛旓細1銆佷笅杞藉畨瑁咃細棣栧厛锛屾偍闇瑕佸湪瀹樻柟缃戠珯鎴栨暀鑲茶祫婧愬钩鍙颁笂涓嬭浇骞跺畨瑁鍚笢涓浣滀笟鏈叓涓鏁板绛旀2023鐢靛瓙鐗堣蒋浠躲2銆佷娇鐢ㄦ悳绱㈠姛鑳斤細鍦ㄨ蒋浠剁晫闈笂鏂癸紝浣犲彲浠ユ壘鍒版悳绱㈡锛岃緭鍏ヤ綘鎯宠鏌ユ壘鐨勬暟瀛﹂鐩垨鐭ヨ瘑鐐癸紝鐒跺悗鎸変笅鎼滅储鎸夐挳銆3銆佹祻瑙堢瓟妗堬細鍦ㄦ悳绱㈢粨鏋滀腑锛屼綘鍙互鎵惧埌涓庤緭鍏ョ殑棰樼洰鎴栫煡璇嗙偣鐩稿叧鐨勭瓟妗銆傜偣鍑荤瓟妗堥摼鎺...
绛旓細(13)1,0,(14)a=2 b=-1 2.5 (15)(1)< < > > > > > (2)> (16)1(17)a=10 b=99 c c a b c 涔樻柟 涔橀櫎 鍔犳硶 鏈夋嫭鍙风殑瑕佸厛绠楁嫭鍙烽噷闈㈢殑 -2 -2 +3鎴-3 2 +5鎴-5 9鍒嗕箣4 -涓夊垎涔4 -9鍒嗕箣4 2 4 8 16 32 2 -7鍒嗕箣16 15鍙3鍒嗕箣...
绛旓細鍙斁澶~鏈涢噰绾筹紒
绛旓細浠ヤ笅鏄鍚笢涓7骞寸骇鏁板涓嬪鏈烞S鐩綍鐨勮缁浣滀笟鍐呭姒傝锛氱涓閮ㄥ垎锛氭暣寮忕殑杩愮畻 浣滀笟1锛氭暣寮忓熀纭浣滀笟2-3锛氭暣寮忓姞鍑忕粌涔犱綔涓4锛氬悓搴曟暟骞傜殑涔樻硶浣滀笟5锛氬箓鐨勪箻鏂逛笌绉殑涔樻柟浣滀笟6锛氬悓搴曟暟骞傜殑闄ゆ硶浣滀笟7-8锛氭暣寮忎箻娉曠粌涔犱綔涓9锛氬钩鏂瑰樊涓庡畬鍏ㄥ钩鏂瑰叕寮忎綔涓10锛氭暣寮忛櫎娉曞崟鍏冭缁冨嵎锛氱涓鍗曞厓 绗簩閮ㄥ垎锛氬钩琛岀嚎...
绛旓細A锛庯紙4锛3锛 B锛庯紙3锛4锛 C锛庯紙锛3锛4锛 D锛庯紙锛4锛3锛 濡傚浘鏄垱鏄涓鐨骞抽潰绀烘剰鍥撅紝鍏朵腑瀹胯垗妤兼殏鏈爣娉紝宸茬煡瀹胯垗妤煎湪鏁欏妤肩殑鍖楀亸涓滅害30掳鐨勬柟鍚戯紝涓庢暀瀛︽ゼ瀹為檯璺濈绾︿负120m锛屽熷姪鍒诲害灏哄拰閲忚鍣紝鑳芥瘮杈冨噯纭湴琛ㄧず璇ュ鑸嶆ゼ浣嶇疆鐨勬槸().A锛庣偣A B锛庣偣B C锛庣偣C D锛庣偣D 鑻ュ皢鐐筆锛...
绛旓細C D C C C 4 姝ｅ崄 30 27 405 15 3 7 11 澶氳竟褰㈢殑杈规暟鏄5鍜10锛屽唴瑙掑拰鏄540鍜1440 绗崄鍥涢鏄105 绗崄浜旈鏄31
绛旓細35锛欱CCDB 涓夎褰DC Ac=ae锛宐c=de,<bac=<dae,<b=<ade 5cm. 40'<efd<a
绛旓細a
绛旓細(1锛塧=4锛宐=-2 a+b=2 (2)a=4 b=2 a+b=6
