Para hallar los extremos hay que resolver la ecuación
dxdf(x)=0(la derivada es igual a cero),
y las raíces de esta ecuación serán los extremos de esta función:
dxdf(x)=primera derivada(tan(x)(tan2(x)+1)sin(x)+log(tan(x))cos(x))tansin(x)(x)=0Resolvermos esta ecuaciónRaíces de esta ecuación
x1=3.46028220939344x2=−93.9290900518902x3=12.8850601701628x4=53.7257646668301x5=63.1505426275995x6=97.7080618170872x7=88.2832838563179x8=72.5753205883689x9=−71.9379414767616x10=82.0000985491383x11=41.159394052471x12=−31.0972369800943x13=−46.8052002480433x14=−87.6459047447106x15=−18.5308663657351x16=−37.3804222872739x17=−43.6636075944535x18=−9.10608840496574x19=47.4425793596505x20=−78.2211267839412x21=−53.0883855552228x22=−15.3892737121453x23=−100.21227535907x24=16.0266528237526x25=66.2921352811893x26=−34.2388296336841x27=−40.5220149408637x28=22.3098381309322x29=−5.96449575137594x30=19.1682454773424x31=−49.946792901633x32=44.3009867060607x33=−56.2299782088126x34=69.4337279347791x35=−24.8140516729147x36=−27.9556443265045x37=−59.3715708624024x38=9.74346751657302x39=60.0089499740097x40=25.451430784522x41=−97.07068270548x42=−62.5131635159922x43=−75.0795341303514x44=−12.2476810585555x45=−65.654756169582x46=38.0178013988812x47=85.1416912027281x48=−84.5043120911208x49=−90.7874973983004x50=91.4248765099076x51=75.7169132419587x52=−68.7963488231718x53=34.8762087452914x54=−21.6724590193249x55=31.7346160917016x56=−2.82290309778615Signos de extremos en los puntos:
(3.4602822093934367, 1.41542505382344)
(-93.92909005189016, 0.706501553931617)
(12.885060170162816, 0.706501553931617)
(53.72576466683013, 1.41542505382344)
(63.150542627599506, 0.706501553931617)
(97.70806181708723, 1.41542505382344)
(88.28328385631785, 0.706501553931617)
(72.57532058836888, 1.41542505382344)
(-71.9379414767616, 1.41542505382344)
(82.00009854913827, 0.706501553931617)
(41.15939405247096, 1.41542505382344)
(-31.097236980094287, 0.706501553931617)
(-46.805200248043256, 1.41542505382344)
(-87.64590474471056, 0.706501553931617)
(-18.530866365735115, 0.706501553931617)
(-37.38042228727387, 0.706501553931617)
(-43.66360759445346, 0.706501553931617)
(-9.106088404965735, 1.41542505382344)
(47.442579359650544, 1.41542505382344)
(-78.22112678394119, 1.41542505382344)
(-53.08838555522284, 1.41542505382344)
(-15.389273712145323, 1.41542505382344)
(-100.21227535906974, 0.706501553931617)
(16.02665282375261, 1.41542505382344)
(66.2921352811893, 1.41542505382344)
(-34.238829633684084, 1.41542505382344)
(-40.52201494086367, 1.41542505382344)
(22.309838130932196, 1.41542505382344)
(-5.964495751375943, 0.706501553931617)
(19.168245477342403, 0.706501553931617)
(-49.946792901633046, 0.706501553931617)
(44.30098670606075, 0.706501553931617)
(-56.22997820881263, 0.706501553931617)
(69.4337279347791, 0.706501553931617)
(-24.8140516729147, 0.706501553931617)
(-27.955644326504494, 1.41542505382344)
(-59.37157086240243, 1.41542505382344)
(9.743467516573023, 1.41542505382344)
(60.00894997400972, 1.41542505382344)
(25.45143078452199, 0.706501553931617)
(-97.07068270547995, 1.41542505382344)
(-62.51316351599222, 0.706501553931617)
(-75.07953413035139, 0.706501553931617)
(-12.24768105855553, 0.706501553931617)
(-65.65475616958201, 1.41542505382344)
(38.01780139888116, 0.706501553931617)
(85.14169120272805, 1.41542505382344)
(-84.50431209112078, 1.41542505382344)
(-90.78749739830036, 1.41542505382344)
(91.42487650990765, 1.41542505382344)
(75.71691324195868, 0.706501553931617)
(-68.79634882317181, 0.706501553931617)
(34.87620874529137, 1.41542505382344)
(-21.672459019324908, 1.41542505382344)
(31.734616091701575, 0.706501553931617)
(-2.8229030977861496, 1.41542505382344)
Intervalos de crecimiento y decrecimiento de la función:Hallemos los intervalos donde la función crece y decrece y también los puntos mínimos y máximos de la función, para lo cual miramos cómo se comporta la función en los extremos con desviación mínima del extremo:
Puntos mínimos de la función:
x1=−93.9290900518902x2=12.8850601701628x3=63.1505426275995x4=88.2832838563179x5=82.0000985491383x6=−31.0972369800943x7=−87.6459047447106x8=−18.5308663657351x9=−37.3804222872739x10=−43.6636075944535x11=−100.21227535907x12=−5.96449575137594x13=19.1682454773424x14=−49.946792901633x15=44.3009867060607x16=−56.2299782088126x17=69.4337279347791x18=−24.8140516729147x19=25.451430784522x20=−62.5131635159922x21=−75.0795341303514x22=−12.2476810585555x23=38.0178013988812x24=75.7169132419587x25=−68.7963488231718x26=31.7346160917016Puntos máximos de la función:
x26=3.46028220939344x26=53.7257646668301x26=97.7080618170872x26=72.5753205883689x26=−71.9379414767616x26=41.159394052471x26=−46.8052002480433x26=−9.10608840496574x26=47.4425793596505x26=−78.2211267839412x26=−53.0883855552228x26=−15.3892737121453x26=16.0266528237526x26=66.2921352811893x26=−34.2388296336841x26=−40.5220149408637x26=22.3098381309322x26=−27.9556443265045x26=−59.3715708624024x26=9.74346751657302x26=60.0089499740097x26=−97.07068270548x26=−65.654756169582x26=85.1416912027281x26=−84.5043120911208x26=−90.7874973983004x26=91.4248765099076x26=34.8762087452914x26=−21.6724590193249x26=−2.82290309778615Decrece en los intervalos
[88.2832838563179,∞)Crece en los intervalos
(−∞,−100.21227535907]