求手写答案，上图
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绛旓細f '(x)=3ax²-b-1/x锛宖 '(1)=0锛3a-b-1=0锛宐-1=3a-2锛屼护g(a)=3a-2-lna锛屽垯g '(a)=3-1/a锛0 1/3鏃秅 '(a)>0锛屽锛屽洜姝(a)鏈灏忓间负g(1/3)=ln3-1>0锛屾墍浠ユ亽鏈 3a-2>lna銆傞 B
绛旓細鍥炵瓟锛4^x=1/64杞寲寰楀埌:4^x*4^3=1,寰楀埌:4^(x+3)=1,寰楀埌x+3=0,寰楀埌x=-3銆 5x^3-1/2*x^0=-5*27-1/2=-271/2
绛旓細2015-12-28 姹傝繖閬撳ぇ涓楂樻暟棰,鏈濂鎵嬪啓鍦ㄧ焊涓婄劧鍚庢媿涓嬫潵缁欐垜鍙戣繃鏉 蹇呮湁閲... 2018-03-17 澶т竴楂樻暟鐨勮瘯鍗姹傜瓟妗 5 2018-07-30 楂樼瓑鏁板,姹傝В绛,闇瑕佹墜鍐欐楠ゃ傘傘 2014-10-07 澶т竴楂樻暟,姹傝缁嗘墜鍐欒В閲婂浘鐗囥傜瓟妗堟槸涓夊垎涔嬩簩? 3 2019-04-08 濡傚浘銆傚ぇ涓楂樻暟銆傛眰澶т浆绛旀銆傛劅婵涓嶅敖璋㈣阿璋㈣阿 1 2018...
绛旓細1銆佸亣璁炬楠岋細璁綡0锛歶=1000锛孒1锛歶锛=1000 褰揌0鎴愮珛鏃讹紝鍙栨灑杞撮噺T=锛坸骞-u0锛/s/鏍瑰彿n 鐢遍鎰忓彲鐭ワ細t鐨勬嫆鎺ュ煙涓猴細锛堣礋 鏃犵┓锛-t锛堜笅鏍囷細x鈥斺旀按骞筹紝x/2锛夛級骞讹紙t锛堝悓涓婏級锛屾鏃犵┓锛変唬鍏ユ暟鎹緱锛歍=锛1080-1000锛/200/3=0.133 鏌ヨ〃寰梩x/2锛坣-1锛=2.306 0.133<2.306 涓嶅湪鎷掓帴...
绛旓細鍥炵瓟锛5鍜6涔嬮棿 6鍜7涔嬮棿 9涓9涔嬮棿
绛旓細姹1锝4棰樻暟瀛绛旀,鎵嬪啓璋㈣阿 鎴戞潵绛 1涓洖绛 #璇濋# 鍔冲姩鑺傜函绾庡共璐с,绛変綘鐪!cdgyzgg 2016-01-28 路 鐭ラ亾鍚堜紮浜烘暀鑲茶瀹 cdgyzgg 鐭ラ亾鍚堜紮浜烘暀鑲茶瀹 閲囩撼鏁:3116 鑾疯禐鏁:16419 姣曚笟浜庡崕涓笀鑼冨ぇ瀛︽暟瀛︾郴,鎿呴暱灏忓銆佸垵涓侀珮涓,澶у鏁板鐨勭瓟鐤戣В鎯戙 鍚慣A鎻愰棶 绉佷俊TA ...
绛旓細6銆2 3 3 5 7銆7 8銆佽〃鏍 鏉″舰 9銆佸 鍋 10銆1 4 11銆24200
绛旓細鍥炵瓟锛歔3/2-1/n-1/(n+1)]*(1/2)
绛旓細杩囧幓寮忥細found, did, sudied, read, left, became, swam, saw, sat, taugut, worked 杩囧幓鍒嗚瘝锛歠ound, done, rowed, studied, left, become, swum, seen, sat, taught, worked 绗笁浜虹О锛歜uys, goes, watches, wathches, teaches, does, carries, studies, has, makes, walks, plays ...
绛旓細鍥炵瓟锛氳В:鍥犱负(x鈥1)*2=4 鎵浠(x鈥1)*2=2*2 涓よ竟鍘绘帀骞虫柟鐨剎鈥1=2 鎵浠=3
