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 derivadax(−cot2(x)−1)+cot(x)=0Resolvermos esta ecuaciónRaíces de esta ecuación
x1=4.14233733555801⋅10−16x2=1.45362353365198⋅10−17x3=−5.64340139631369⋅10−18x4=3.24454072651749⋅10−18x5=−1.0336014449672⋅10−15x6=2.89656109220715⋅10−16x7=−3.620858317633⋅10−15x8=1.61904873943669⋅10−15x9=1.26980414917627⋅10−14x10=−4.06279101811881⋅10−17x11=−2.71634387267654⋅10−15x12=−5.55874660801856⋅10−15x13=1.44474290131774⋅10−18x14=1.2403471803931⋅10−18x15=1.25912856578362⋅10−18x16=6.07020865447997⋅10−19x17=3.11132936961652⋅10−13x18=−1.01922295710768⋅10−15x19=1.1749225530677⋅10−17x20=−2.10428377845423⋅10−19x21=−8.00122769767989⋅10−15x22=4.5847372435963⋅10−15x23=−5.745550974241⋅10−17x24=−3.51090745762135⋅10−15x25=−6.40821132707816⋅10−15x26=−1.98274474791319⋅10−16x27=−4.40909774211023⋅10−17x28=4.38463104684664⋅10−16x29=−1.49427676404117⋅10−16x30=−6.61342656563683⋅10−19x31=−4.92334203842595⋅10−15x32=−5.99685278638184⋅10−16x33=4.94904520367816⋅10−19x34=−2.04733750361427⋅10−15x35=−1.79387879992692⋅10−17x36=2.64478262616224⋅10−17x37=−1.5594946391662⋅10−15x38=1.65370221642112⋅10−15x39=1.73191897241912⋅10−19x40=−1.88300342913155⋅10−15x41=2.72320120731057⋅10−14x42=−9.87053303721349⋅10−18x43=−9.70142387919427⋅10−15x44=−7.17820192753118⋅10−17x45=2.71254570988687⋅10−17x46=−3.28203040887896⋅10−19x47=1.15626527833042⋅10−14x48=−1.59933915115257⋅10−17x49=−2.2475411221051⋅10−18x50=−6.82906419646335⋅10−18x51=−6.15762676583726⋅10−19x52=−1.10028462562426⋅10−15x53=−4.18830978571137⋅10−16x54=−1.1313309676076⋅10−16x55=−5.8555151294134⋅10−19x56=−6.42168942773399⋅10−16x57=−1.87511913076322⋅10−14x58=4.9014381205221⋅10−16x59=1.06627540671766⋅10−14x60=3.16309354089764⋅10−18x61=−2.68607051572303⋅10−17x62=−8.05253613839673⋅10−18x63=1.74173497722007⋅10−14x64=1.65999039586112⋅10−17x65=−1.51633707509715⋅10−16Signos de extremos en los puntos:
(4.142337335558013e-16, 1)
(1.4536235336519808e-17, 1)
(-5.643401396313692e-18, 1)
(3.244540726517495e-18, 1)
(-1.0336014449671976e-15, 1)
(2.896561092207152e-16, 1)
(-3.620858317633002e-15, 1)
(1.619048739436685e-15, 1)
(1.2698041491762749e-14, 1)
(-4.062791018118812e-17, 1)
(-2.7163438726765407e-15, 1)
(-5.558746608018558e-15, 1)
(1.4447429013177414e-18, 1)
(1.2403471803931023e-18, 1)
(1.2591285657836205e-18, 1)
(6.070208654479967e-19, 1)
(3.1113293696165157e-13, 1)
(-1.019222957107677e-15, 1)
(1.1749225530677002e-17, 1)
(-2.104283778454231e-19, 1)
(-8.001227697679886e-15, 1)
(4.584737243596305e-15, 1)
(-5.745550974240997e-17, 1)
(-3.5109074576213455e-15, 1)
(-6.408211327078158e-15, 1)
(-1.9827447479131868e-16, 1)
(-4.409097742110226e-17, 1)
(4.38463104684664e-16, 1)
(-1.4942767640411654e-16, 1)
(-6.613426565636826e-19, 1)
(-4.923342038425946e-15, 1)
(-5.996852786381843e-16, 1)
(4.949045203678157e-19, 1)
(-2.0473375036142655e-15, 1)
(-1.793878799926921e-17, 1)
(2.644782626162242e-17, 1)
(-1.5594946391661973e-15, 1)
(1.6537022164211227e-15, 1)
(1.731918972419121e-19, 1)
(-1.8830034291315523e-15, 1)
(2.7232012073105654e-14, 1)
(-9.870533037213493e-18, 1)
(-9.701423879194267e-15, 1)
(-7.178201927531184e-17, 1)
(2.7125457098868662e-17, 1)
(-3.282030408878956e-19, 1)
(1.1562652783304189e-14, 1)
(-1.5993391511525723e-17, 1)
(-2.2475411221050973e-18, 1)
(-6.8290641964633494e-18, 1)
(-6.157626765837259e-19, 1)
(-1.100284625624258e-15, 1)
(-4.188309785711367e-16, 1)
(-1.1313309676075998e-16, 1)
(-5.855515129413405e-19, 1)
(-6.421689427733992e-16, 1)
(-1.875119130763221e-14, 1)
(4.9014381205221e-16, 1)
(1.0662754067176585e-14, 1)
(3.16309354089764e-18, 1)
(-2.6860705157230273e-17, 1)
(-8.052536138396728e-18, 1)
(1.7417349772200653e-14, 1)
(1.659990395861115e-17, 1)
(-1.5163370750971476e-16, 1)
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:
La función no tiene puntos mínimos
Puntos máximos de la función:
x65=4.14233733555801⋅10−16x65=1.45362353365198⋅10−17x65=−5.64340139631369⋅10−18x65=3.24454072651749⋅10−18x65=−1.0336014449672⋅10−15x65=2.89656109220715⋅10−16x65=−3.620858317633⋅10−15x65=1.61904873943669⋅10−15x65=1.26980414917627⋅10−14x65=−4.06279101811881⋅10−17x65=−2.71634387267654⋅10−15x65=−5.55874660801856⋅10−15x65=1.44474290131774⋅10−18x65=1.2403471803931⋅10−18x65=1.25912856578362⋅10−18x65=6.07020865447997⋅10−19x65=3.11132936961652⋅10−13x65=−1.01922295710768⋅10−15x65=1.1749225530677⋅10−17x65=−2.10428377845423⋅10−19x65=−8.00122769767989⋅10−15x65=4.5847372435963⋅10−15x65=−5.745550974241⋅10−17x65=−3.51090745762135⋅10−15x65=−6.40821132707816⋅10−15x65=−1.98274474791319⋅10−16x65=−4.40909774211023⋅10−17x65=4.38463104684664⋅10−16x65=−1.49427676404117⋅10−16x65=−6.61342656563683⋅10−19x65=−4.92334203842595⋅10−15x65=−5.99685278638184⋅10−16x65=4.94904520367816⋅10−19x65=−2.04733750361427⋅10−15x65=−1.79387879992692⋅10−17x65=2.64478262616224⋅10−17x65=−1.5594946391662⋅10−15x65=1.65370221642112⋅10−15x65=1.73191897241912⋅10−19x65=−1.88300342913155⋅10−15x65=2.72320120731057⋅10−14x65=−9.87053303721349⋅10−18x65=−9.70142387919427⋅10−15x65=−7.17820192753118⋅10−17x65=2.71254570988687⋅10−17x65=−3.28203040887896⋅10−19x65=1.15626527833042⋅10−14x65=−1.59933915115257⋅10−17x65=−2.2475411221051⋅10−18x65=−6.82906419646335⋅10−18x65=−6.15762676583726⋅10−19x65=−1.10028462562426⋅10−15x65=−4.18830978571137⋅10−16x65=−1.1313309676076⋅10−16x65=−5.8555151294134⋅10−19x65=−6.42168942773399⋅10−16x65=−1.87511913076322⋅10−14x65=4.9014381205221⋅10−16x65=1.06627540671766⋅10−14x65=3.16309354089764⋅10−18x65=−2.68607051572303⋅10−17x65=−8.05253613839673⋅10−18x65=1.74173497722007⋅10−14x65=1.65999039586112⋅10−17x65=−1.51633707509715⋅10−16Decrece en los intervalos
(−∞,−1.87511913076322⋅10−14]Crece en los intervalos
[3.11132936961652⋅10−13,∞)