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 derivada2xsin(x2+10043π)+21=0Resolvermos esta ecuaciónRaíces de esta ecuación
x1=−59.0673710336714x2=−14.6765790799688x3=18.1254003272219x4=−0.253067907308303x5=−7.84301275894851x6=30.1094286758943x7=−5.18413022918244x8=82.1962161813902x9=56.1219297718006x10=−23.7517645351511x11=−45.898282526298x12=−3.78033045426059x13=28.0006848145669x14=−1.26142724762611x15=−79.8110402703968x16=−85.7503037998523x17=22.2488093531615x18=57.9397616208939x19=−69.771923517515x20=39.6559369940426x21=−71.813283824168x22=−91.7503141769514x23=6.76830482747729x24=10.2683453538832x25=−54.3010130006599x26=−83.7298447614051x27=92.0920548428205x28=19.5425337645512x29=−118.563376012134x30=−37.706550585261x31=−16.105458146094x32=9.63695751046927x33=−93.0929673010935x34=−12.8504501866847x35=44.189524643429x36=−5.75875060292414x37=96.0168014316188x38=−21.7489795348122x39=98.1684920416309x40=4.17597521630883x41=−6.99645178806103x42=20.2536440313951x43=32.1285057156498x44=51.8444558703893x45=−42.1146414946693x46=40.1674185766779x47=−81.4475037616697x48=−33.7496643074153x49=84.1602252820932x50=−65.8812109568259x51=2.19503055863999x52=54.4454588407555x53=34.120189283569x54=−0.253067907308303x55=14.2432507074974x56=94.2667353005108x57=−97.6390304045964x58=−77.9793286614609x59=26.5020081536426x60=−55.7568859063973x61=−35.9142970794647x62=−47.8750140912127x63=41.8903971872546x64=6.02550618610396x65=1.40349228286476x66=−14.2420182224566x67=3.33774094289165x68=−43.2191041037829x69=39.0170214092997x70=−95.1127677336722x71=8.42231759038549x72=65.761888664752x73=13.3318659450388x74=12.7276191630586x75=90.2311171525508x76=61.4908334991748x77=80.1057178191658x78=60.3043055043592x79=−63.6498826867489x80=−57.7496739585048x81=40.942074763623x82=−17.863526003547x83=77.534858159205Signos de extremos en los puntos:
/ 43*pi\
(-59.06737103367145, -29.5336855168357 - cos|3488.95432082941 + -----|)
\ 100 /
/ 43*pi\
(-14.676579079968846, -7.33828953998442 - cos|215.401973490579 + -----|)
\ 100 /
/ 43*pi\
(18.125400327221886, 9.06270016361094 - cos|328.530137022055 + -----|)
\ 100 /
/ 43*pi\
(-0.25306790730830264, -0.126533953654151 - cos|0.0640433657094037 + -----|)
\ 100 /
/ 43*pi\
(-7.843012758948514, -3.92150637947426 - cos|61.5128491370292 + -----|)
\ 100 /
/ 43*pi\
(30.10942867589428, 15.0547143379471 - cos|906.577695188765 + -----|)
\ 100 /
/ 43*pi\
(-5.184130229182436, -2.59206511459122 - cos|26.8752062331231 + -----|)
\ 100 /
/ 43*pi\
(82.19621618139017, 41.0981080906951 - cos|6756.21795453783 + -----|)
\ 100 /
/ 43*pi\
(56.12192977180059, 28.0609648859003 - cos|3149.67100131092 + -----|)
\ 100 /
/ 43*pi\
(-23.751764535151057, -11.8758822675755 - cos|564.14631853326 + -----|)
\ 100 /
/ 43*pi\
(-45.89828252629801, -22.949141263149 - cos|2106.65233886387 + -----|)
\ 100 /
/ 43*pi\
(-3.7803304542605902, -1.8901652271303 - cos|14.2908983434101 + -----|)
\ 100 /
/ 43*pi\
(28.000684814566895, 14.0003424072834 - cos|784.038350084717 + -----|)
\ 100 /
/ 43*pi\
(-1.2614272476261092, -0.630713623813055 - cos|1.59119870105358 + -----|)
\ 100 /
/ 43*pi\
(-79.81104027039677, -39.9055201351984 - cos|6369.8021490429 + -----|)
\ 100 /
/ 43*pi\
(-85.75030379985232, -42.8751518999262 - cos|7353.11460176697 + -----|)
\ 100 /
/ 43*pi\
(22.248809353161487, 11.1244046765807 - cos|495.009517633326 + -----|)
\ 100 /
/ 43*pi\
(57.93976162089389, 28.9698808104469 - cos|3357.01597668601 + -----|)
\ 100 /
/ 43*pi\
(-69.77192351751503, -34.8859617587575 - cos|4868.12131133397 + -----|)
\ 100 /
/ 43*pi\
(39.65593699404262, 19.8279684970213 - cos|1572.59333887548 + -----|)
\ 100 /
/ 43*pi\
(-71.81328382416798, -35.906641912084 - cos|5157.14773361051 + -----|)
\ 100 /
/ 43*pi\
(-91.75031417695138, -45.8751570884757 - cos|8418.12015156928 + -----|)
\ 100 /
/ 43*pi\
(6.76830482747729, 3.38415241373864 - cos|45.8099502376524 + -----|)
\ 100 /
/ 43*pi\
(10.268345353883186, 5.13417267694159 - cos|105.438916306614 + -----|)
\ 100 /
/ 43*pi\
(-54.301013000659864, -27.1505065003299 - cos|2948.60001289783 + -----|)
\ 100 /
/ 43*pi\
(-83.7298447614051, -41.8649223807026 - cos|7010.686903769 + -----|)
\ 100 /
/ 43*pi\
(92.09205484282047, 46.0460274214102 - cos|8480.94656517305 + -----|)
\ 100 /
/ 43*pi\
(19.54253376455119, 9.7712668822756 - cos|381.910625938623 + -----|)
\ 100 /
/ 43*pi\
(-118.56337601213447, -59.2816880060672 - cos|14057.2741313948 + -----|)
\ 100 /
/ 43*pi\
(-37.706550585261, -18.8532752926305 - cos|1421.78395703885 + -----|)
\ 100 /
/ 43*pi\
(-16.105458146093962, -8.05272907304698 - cos|259.385782095584 + -----|)
\ 100 /
/ 43*pi\
(9.636957510469266, 4.81847875523463 - cos|92.87095005859 + -----|)
\ 100 /
/ 43*pi\
(-93.09296730109352, -46.5464836505468 - cos|8666.30056092247 + -----|)
\ 100 /
/ 43*pi\
(-12.850450186684657, -6.42522509334233 - cos|165.134070000464 + -----|)
\ 100 /
/ 43*pi\
(44.18952464342902, 22.0947623217145 - cos|1952.71408821222 + -----|)
\ 100 /
/ 43*pi\
(-5.758750602924143, -2.87937530146207 - cos|33.1632085066792 + -----|)
\ 100 /
/ 43*pi\
(96.01680143161883, 48.0084007158094 - cos|9219.22615715892 + -----|)
\ 100 /
/ 43*pi\
(-21.748979534812193, -10.8744897674061 - cos|473.01811080568 + -----|)
\ 100 /
/ 43*pi\
(98.16849204163086, 49.0842460208154 - cos|9637.05282972774 + -----|)
\ 100 /
/ 43*pi\
(4.175975216308828, 2.08798760815441 - cos|17.4387690072256 + -----|)
\ 100 /
/ 43*pi\
(-6.996451788061027, -3.49822589403051 - cos|48.9503376226623 + -----|)
\ 100 /
/ 43*pi\
(20.25364403139506, 10.1268220156975 - cos|410.210096550465 + -----|)
\ 100 /
/ 43*pi\
(32.12850571564983, 16.0642528578249 - cos|1032.24087952054 + -----|)
\ 100 /
/ 43*pi\
(51.844455870389346, 25.9222279351947 - cos|2687.84760449675 + -----|)
\ 100 /
/ 43*pi\
(-42.11464149466932, -21.0573207473347 - cos|1773.64302822452 + -----|)
\ 100 /
/ 43*pi\
(40.167418576677875, 20.0837092883389 - cos|1613.42151511405 + -----|)
\ 100 /
/ 43*pi\
(-81.44750376166971, -40.7237518808349 - cos|6633.6958690072 + -----|)
\ 100 /
/ 43*pi\
(-33.749664307415294, -16.8748321537076 - cos|1139.03984086322 + -----|)
\ 100 /
/ 43*pi\
(84.16022528209318, 42.0801126410466 - cos|7082.94351953268 + -----|)
\ 100 /
/ 43*pi\
(-65.88121095682585, -32.9406054784129 - cos|4340.33395713779 + -----|)
\ 100 /
/ 43*pi\
(2.195030558639986, 1.09751527931999 - cos|4.81815915336337 + -----|)
\ 100 /
/ 43*pi\
(54.44545884075552, 27.2227294203778 - cos|2964.3079883804 + -----|)
\ 100 /
/ 43*pi\
(34.12018928356896, 17.0600946417845 - cos|1164.18731674657 + -----|)
\ 100 /
/ 43*pi\
(-0.2530679073083027, -0.126533953654151 - cos|0.0640433657094037 + -----|)
\ 100 /
/ 43*pi\
(14.243250707497385, 7.12162535374869 - cos|202.870190716625 + -----|)
\ 100 /
/ 43*pi\
(94.26673530051085, 47.1333676502554 - cos|8886.21738421658 + -----|)
\ 100 /
/ 43*pi\
(-97.6390304045964, -48.8195152022982 - cos|9533.3802583497 + -----|)
\ 100 /
/ 43*pi\
(-77.97932866146087, -38.9896643307304 - cos|6080.77569849213 + -----|)
\ 100 /
/ 43*pi\
(26.502008153642645, 13.2510040768213 - cos|702.356436175741 + -----|)
\ 100 /
/ 43*pi\
(-55.756885906397265, -27.8784429531986 - cos|3108.830325979 + -----|)
\ 100 /
/ 43*pi\
(-35.914297079464724, -17.9571485397324 - cos|1289.83673471205 + -----|)
\ 100 /
/ 43*pi\
(-47.87501409121271, -23.9375070456064 - cos|2292.01697423382 + -----|)
\ 100 /
/ 43*pi\
(41.89039718725462, 20.9451985936273 - cos|1754.80537650595 + -----|)
\ 100 /
/ 43*pi\
(6.02550618610396, 3.01275309305198 - cos|36.3067247987771 + -----|)
\ 100 /
/ 43*pi\
(1.403492282864759, 0.701746141432379 - cos|1.96979058806093 + -----|)
\ 100 /
/ 43*pi\
(-14.242018222456595, -7.1210091112283 - cos|202.835083048786 + -----|)
\ 100 /
/ 43*pi\
(3.3377409428916542, 1.66887047144583 - cos|11.1405146018553 + -----|)
\ 100 /
/ 43*pi\
(-43.21910410378293, -21.6095520518915 - cos|1867.89095953363 + -----|)
\ 100 /
/ 43*pi\
(39.01702140929966, 19.5085107046498 - cos|1522.32795965375 + -----|)
\ 100 /
/ 43*pi\
(-95.11276773367221, -47.5563838668361 - cos|9046.43858595948 + -----|)
\ 100 /
/ 43*pi\
(8.422317590385488, 4.21115879519274 - cos|70.9354335933168 + -----|)
\ 100 /
/ 43*pi\
(65.76188866475201, 32.880944332376 - cos|4324.62600075524 + -----|)
\ 100 /
/ 43*pi\
(13.33186594503883, 6.66593297251941 - cos|177.738649576486 + -----|)
\ 100 /
/ 43*pi\
(12.727619163058622, 6.36380958152931 - cos|161.992289559857 + -----|)
\ 100 /
/ 43*pi\
(90.23111715255082, 45.1155585762754 - cos|8141.65450259735 + -----|)
\ 100 /
/ 43*pi\
(61.49083349917479, 30.7454167495874 - cos|3781.12260442324 + -----|)
\ 100 /
/ 43*pi\
(80.1057178191658, 40.0528589095829 - cos|6416.92602732382 + -----|)
\ 100 /
/ 43*pi\
(60.30430550435918, 30.1521527521796 - cos|3636.60926236308 + -----|)
\ 100 /
/ 43*pi\
(-63.649882686748924, -31.8249413433745 - cos|4051.3075660369 + -----|)
\ 100 /
/ 43*pi\
(-57.7496739585048, -28.8748369792524 - cos|3335.02484231361 + -----|)
\ 100 /
/ 43*pi\
(40.94207476362302, 20.4710373818115 - cos|1676.2534859501 + -----|)
\ 100 /
/ 43*pi\
(-17.863526003547012, -8.93176300177351 - cos|319.1055612794 + -----|)
\ 100 /
/ 43*pi\
(77.53485815920503, 38.7674290796025 - cos|6011.65422976804 + -----|)
\ 100 /
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=−0.253067907308303x2=−7.84301275894851x3=−23.7517645351511x4=28.0006848145669x5=−79.8110402703968x6=22.2488093531615x7=−69.771923517515x8=−71.813283824168x9=−91.7503141769514x10=10.2683453538832x11=−83.7298447614051x12=92.0920548428205x13=19.5425337645512x14=9.63695751046927x15=44.189524643429x16=98.1684920416309x17=4.17597521630883x18=−6.99645178806103x19=51.8444558703893x20=40.1674185766779x21=−81.4475037616697x22=−65.8812109568259x23=2.19503055863999x24=54.4454588407555x25=−0.253067907308303x26=−77.9793286614609x27=26.5020081536426x28=−55.7568859063973x29=−47.8750140912127x30=6.02550618610396x31=3.33774094289165x32=−95.1127677336722x33=12.7276191630586x34=90.2311171525508x35=61.4908334991748x36=60.3043055043592x37=−63.6498826867489x38=−57.7496739585048x39=40.942074763623x40=−17.863526003547x41=77.534858159205Puntos máximos de la función:
x41=−59.0673710336714x41=−14.6765790799688x41=18.1254003272219x41=30.1094286758943x41=−5.18413022918244x41=82.1962161813902x41=56.1219297718006x41=−45.898282526298x41=−3.78033045426059x41=−1.26142724762611x41=−85.7503037998523x41=57.9397616208939x41=39.6559369940426x41=6.76830482747729x41=−54.3010130006599x41=−118.563376012134x41=−37.706550585261x41=−16.105458146094x41=−93.0929673010935x41=−12.8504501866847x41=−5.75875060292414x41=96.0168014316188x41=−21.7489795348122x41=20.2536440313951x41=32.1285057156498x41=−42.1146414946693x41=−33.7496643074153x41=84.1602252820932x41=34.120189283569x41=14.2432507074974x41=94.2667353005108x41=−97.6390304045964x41=−35.9142970794647x41=41.8903971872546x41=1.40349228286476x41=−14.2420182224566x41=−43.2191041037829x41=39.0170214092997x41=8.42231759038549x41=65.761888664752x41=13.3318659450388x41=80.1057178191658Decrece en los intervalos
[98.1684920416309,∞)Crece en los intervalos
(−∞,−95.1127677336722]