微积分运算题目? 微积分计算题
\u5fae\u79ef\u5206\u8ba1\u7b97\u9898\uff1f\u5148\u6c42\u539f\u89e3\u6790\u5f0f\u5728\u54272\u5e26\u5165\u5728\u54271\u4f60\u5e26\u5165\u7528f2-f1\u5c31\u662f\u6700\u540e\u7684\u7b54\u6848\uff08\u539f\u89e3\u6790\u5f0f\u662f\u6c42\u5bfc\u540e\u7684\u56fe\u4e2d\u5f0f\u5b50\uff09\u4e0d\u4f1a\u7684\u8fd8\u53ef\u4ee5\u518d\u95ee
\u8c8c\u4f3c\u9898\u76ee\u6ca1\u6709\u5199\u5b8c\u6574\u7684\u5427\uff1f
\u4f60\u7684\u9898\u76ee\u9009\u9879\u662f\u4ec0\u4e48
\u5bf9\u4e8e\u7f57\u5c14\u5b9a\u7406
\u5c31\u662f\u8981\u51fd\u6570 f(x) \u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6
\uff081\uff09\u5728\u95ed\u533a\u95f4 [a,b] \u4e0a\u8fde\u7eed
\uff082\uff09\u5728\u5f00\u533a\u95f4 (a,b) \u5185\u53ef\u5bfc
\uff083\uff09\u51fd\u6570\u503cf(a)=f(b)
\u90a3\u4e48\u5c31\u81f3\u5c11\u5b58\u5728\u4e00\u4e2a \u03be\u2208(a,b)\uff0c\u4f7f\u5f97 f'(\u03be)=0
\u4ee3\u5165\u5404\u4e2a\u9009\u9879\uff0c\u770b\u54ea\u4e2a\u4e0d\u6ee1\u8db3\u5373\u53ef
绛旓細鏈変竴涓冻澶熷ぇ鐨勫鍣紝瑁呮湁1000L婧舵恫锛屾祿搴︿负50%锛岀幇鍦ㄥ悓鏃跺線閲屾敞鍏ョ函姘,閫熷害涓15L/s锛屽苟涓旀帓鍑烘憾娑,閫熷害涓5L/s锛屽亣璁炬憾娑插湪娉ㄥ叆绾按鐬棿宸茬粡鍧囧寑娣峰悎锛屼笖绾按涓庢憾娑叉贩鍚堝苟涓嶅彂鐢熶綋绉彉鍖栵紝闂粡杩囧灏戠鍚庯紝瀹瑰櫒鍐呮憾娑叉祿搴﹀彉鎴10%锛熻В锛氭祿搴︿负50锛呯殑1000鍗囨憾娑蹭腑鍚憾璐500鍗囷紱t绉掑悗娉ㄥ叆绾按15t鍗囷紝鍒...
绛旓細璇绉垎鍊间负134.1銆佽繖鏄竴涓垎娈电Н鍒嗭紝鍙互灏嗙Н鍒嗗尯闂达紙3鈫-2锛夊垎鎴愪袱涓Н鍒嗘锛屽嵆锛3鈫5锛夊拰锛5鈫-2锛夈傚嵆 鈭(3鈫-2){3f(x)+2g(x)}dx=鈭(3鈫5){3f(x)+2g(x)}dx+鈭(5鈫-2){3f(x)+2g(x)}dx.2銆佹敞鎰忕Н鍒嗗尯闂翠氦鎹㈡椂锛屽簲鍙樺彿銆傛眰瑙h繃绋嬪涓嬶細...
绛旓細閮芥槸鍩烘湰鐨寰Н鍒嗚繍绠锛岃绉嚱鏁版病鏈墄锛屾墍浠ュ嚑涔庨兘鏄洿鎺ユ妸x浠e叆鍒拌绉嚱鏁帮紝鍐嶅姞涓璐熷彿鍗冲彲銆19锛-arcsinx锛20锛寈*e^(-sinx)锛21锛(sinx)^99锛22锛岀敤娲涘繀杈炬硶鍒欎竴娆★紝鍘熷紡=lim(x->0)cosx²=1锛23锛岀敤娲涘繀杈炬硶鍒欎竴娆★紝绛変环鏃犵┓灏忓叧绯伙紝鍘熷紡=lim(x->0)tg²x/3x²=...
绛旓細x->0 e^(-2/(1+x)) = e^-2 閫夌1涓 4.鍘熷紡=3e^x+鈭(2^x*e^x)dx=3e^x+2^x*e^x-ln2鈭(2^x*e^x)dx 鎵浠(1+ln2)鈭(2^x*e^x)dx=2^x*e^x,鎵浠ュ師寮=3e^x+(2e)^x/(1+ln2)+C 閫夌2涓 5.杩炵画绉垎2娆℃湁:y'=e^x+C1,y=e^x+C1x+C2 閫夌3涓 ...
绛旓細1銆丄, 姣斿y=鏍瑰彿(x²)=|x|,鍦▁=0澶勪笉鍙 2銆丄 , f(x)鍙兘涓嶅彲瀵 3銆丄 , 姣斿g(x)=x²锛寈(x)=|t|,g(t)鍙锛屼絾涓嶈兘鐢ㄩ偅涓眰瀵煎叕寮忔眰 4銆丅 ,5銆 A , 闂尯闂寸殑杩炵画鍑芥暟涓瀹氭槸鏈夌晫鐨 6銆 A , y=1/x 鐨勫師鍑芥暟涓嶆槸 7銆丄 ,8銆丅 ,9銆丅 ,10銆 A 瑕...
绛旓細1 lim(x鈫3锛寉鈫0)sin(xy)/tan(xy)=lim(x鈫3,y鈫0)sin(xy)'/tan(xy)'=lim(x鈫3锛寉鈫0)xcos(xy)/[x/(cos(xy))^2]=lim(x鈫3锛寉鈫0)cos(xy)=1 2 lim(x鈫0,y鈫2) (1+sin(xy))^(y/x)=lim(x鈫0,y鈫2)锛1+sin(xy))^(y/sin(xy))^(sin(xy)/x)=lim(x...
绛旓細瑙o細1鍏昂锛1绫 80km/h=200/9m/s=v=at (ds)^2/dt^2=a 鈶 dv/dt=-a 鈶 瀵光憼寮忎袱杈规眰绉垎寰楋細ds/dt=at+C1 s=1/2at^2+C1t+C2 瀵光憽寮忎袱杈规眰绉垎寰楋細v=-at+C3 浠e叆s=0,t=0,v=200/9鍒扳憼鈶′袱寮忓緱鍒癈1=0 C2=0 C3=200/9 鍗筹細260=1/2at^2 200/9=at 鑱旂珛瑙...
绛旓細杩欓噷灏辨槸瀹绉垎鐨勫畾涔夊紡瀛 f(x)鍦╗a,b]涓婂拰x杞村舰鎴愮殑鍥惧舰闈㈢Н杩戜技鏄 鈭慬f(x)螖x]褰撐攛->0鐨勬椂锛屽嵆瀹氱Н鍒=lim螖x->0鈭慬f(x)螖x]鐜板湪鏄尯闂碵1锛5]閭d箞绉垎涓婁笅闄恇=5锛宎=1 绉垎鍑芥暟灏辨槸f(x)e^x /x
绛旓細1.鑰冭檻 |(2n-1)/(3n+2)-2/3| =| (6n-3-6n-4)/3(3n+2) | =|-7| / 3|3n+2| =(7/3) * 1/3|3n+2| <3/3|3n+2| <1/3n 瀵逛换鎰徫>0锛屽彇N=[1/3蔚]+1>0锛屽綋n>N锛屽氨鏈墊(2n-1)/(3n+2)-2/3|<蔚 鏍规嵁瀹氫箟锛宭im (2n-1)/(3n+2)=2/3 2.鍏堣瘉xn鏈夌晫 ...
绛旓細瑙g瓟锛歭im(sinx/x)^(1/x²)x鈫0 =lim(1+sinx/x-1)^(1/x²)x鈫0 =lim[1+(sinx-x)/x]^(1/x²)x鈫0 =lim[1+(sinx-x)/x]^[x/(sinx-x)](sinx-x)/x³]x鈫0 =lim e^[(sinx-x)/x³]x鈫0 =lim e^[(cosx-1)/3x²]x鈫0 =lim ...