Sr Examen

ln(sinx)-sin(lnx) la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
log(sin(x)) - sin(log(x)) = 0
$$\log{\left(\sin{\left(x \right)} \right)} - \sin{\left(\log{\left(x \right)} \right)} = 0$$
Solución detallada
Tenemos la ecuación
$$\log{\left(\sin{\left(x \right)} \right)} - \sin{\left(\log{\left(x \right)} \right)} = 0$$
cambiamos
$$\log{\left(\sin{\left(x \right)} \right)} - \sin{\left(\log{\left(x \right)} \right)} = 0$$
$$\log{\left(\sin{\left(x \right)} \right)} - \sin{\left(\log{\left(x \right)} \right)} = 0$$
Sustituimos
$$w = \sin{\left(x \right)}$$
Tenemos la ecuación
$$\log{\left(w \right)} - \sin{\left(\log{\left(x \right)} \right)} = 0$$
$$\log{\left(w \right)} = \sin{\left(\log{\left(x \right)} \right)}$$
Es la ecuación de la forma:
log(v)=p

Por definición log
v=e^p

entonces
$$w = e^{\frac{\sin{\left(\log{\left(x \right)} \right)}}{1}}$$
simplificamos
$$w = e^{\sin{\left(\log{\left(x \right)} \right)}}$$
hacemos cambio inverso
$$\sin{\left(x \right)} = w$$
Tenemos la ecuación
$$\sin{\left(x \right)} = w$$
es la ecuación trigonométrica más simple
Esta ecuación se reorganiza en
$$x = 2 \pi n + \operatorname{asin}{\left(w \right)}$$
$$x = 2 \pi n - \operatorname{asin}{\left(w \right)} + \pi$$
O
$$x = 2 \pi n + \operatorname{asin}{\left(w \right)}$$
$$x = 2 \pi n - \operatorname{asin}{\left(w \right)} + \pi$$
, donde n es cualquier número entero
sustituimos w:
Gráfica
Respuesta numérica [src]
x1 = -3.59824110422922 + 5.06370169247565*i
x2 = 90.7211072042027
x3 = 44.5571723581144
x4 = 32.223293417014
x5 = 40.2075600634782
x6 = 38.3629725436526
x7 = 7.95854438004291 + 1.53107174782498*i
x8 = 78.1376626831591
x9 = 27.2592339775654
x10 = 84.4309158166647
x11 = 63.2760214376369
x12 = 20.4728620817117 + 0.506208004455497*i
x13 = 50.7808840118349
x14 = 94.6297536653166
x15 = 52.9074595471421
x16 = 0.526553189835743 + 0.270574532652059*i
x17 = 0.334857503707964 + 2.43497625609989*i
x18 = 20.4728620817117 - 0.506208004455497*i
x19 = 65.537878349721
x20 = 7.95854438004291 - 1.53107174782498*i
x21 = 71.8404302298724
x22 = 88.3519995372174
x23 = 0.334857503707964 - 2.43497625609989*i
x24 = 82.0768608528877
x25 = 97.0088855548699 - 3.85125848085324e-18*i
x26 = 69.5376120295913
x27 = -3.59824110422922 - 5.06370169247565*i
x28 = 14.2203975605286 + 1.04456765338212*i
x29 = 75.8050576442694
x30 = 14.2203975605286 - 1.04456765338212*i
x31 = 33.7947522156181
x32 = 26.2149848054787
x33 = 46.5707964741994
x33 = 46.5707964741994