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cos(x)=-0,7 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
cos(x) = -7/10
$$\cos{\left(x \right)} = - \frac{7}{10}$$
Solución detallada
Tenemos la ecuación
$$\cos{\left(x \right)} = - \frac{7}{10}$$
es la ecuación trigonométrica más simple
Esta ecuación se reorganiza en
$$x = \pi n + \operatorname{acos}{\left(- \frac{7}{10} \right)}$$
$$x = \pi n - \pi + \operatorname{acos}{\left(- \frac{7}{10} \right)}$$
O
$$x = \pi n + \operatorname{acos}{\left(- \frac{7}{10} \right)}$$
$$x = \pi n - \pi + \operatorname{acos}{\left(- \frac{7}{10} \right)}$$
, donde n es cualquier número entero
Gráfica
Suma y producto de raíces [src]
suma
-acos(-7/10) + 2*pi + acos(-7/10)
$$\operatorname{acos}{\left(- \frac{7}{10} \right)} + \left(- \operatorname{acos}{\left(- \frac{7}{10} \right)} + 2 \pi\right)$$
=
2*pi
$$2 \pi$$
producto
(-acos(-7/10) + 2*pi)*acos(-7/10)
$$\left(- \operatorname{acos}{\left(- \frac{7}{10} \right)} + 2 \pi\right) \operatorname{acos}{\left(- \frac{7}{10} \right)}$$
=
(-acos(-7/10) + 2*pi)*acos(-7/10)
$$\left(- \operatorname{acos}{\left(- \frac{7}{10} \right)} + 2 \pi\right) \operatorname{acos}{\left(- \frac{7}{10} \right)}$$
(-acos(-7/10) + 2*pi)*acos(-7/10)
Respuesta rápida [src]
x1 = -acos(-7/10) + 2*pi
$$x_{1} = - \operatorname{acos}{\left(- \frac{7}{10} \right)} + 2 \pi$$
x2 = acos(-7/10)
$$x_{2} = \operatorname{acos}{\left(- \frac{7}{10} \right)}$$
x2 = acos(-7/10)
Respuesta numérica [src]
x1 = 27.478935052124
x2 = -3.93699148377394
x3 = 35.3529180196719
x4 = -71.4612322023811
x5 = 73.0520298627494
x6 = -84.0276028167403
x7 = 65.1780468952015
x8 = -2.34619382340565
x9 = -33.7621203593036
x10 = -41.6361033268515
x11 = -47.919288634031
x12 = -2850.21993563613
x13 = -52.6116762808423
x14 = 66.7688445555698
x15 = -73.0520298627494
x16 = 46.3284909736628
x17 = 98.1847710914677
x18 = 79.335215169929
x19 = -65.1780468952015
x20 = -22.7865474053127
x21 = 16.5033620981331
x22 = 29.0697327124923
x23 = -90.3107881239199
x24 = -96.5939734310994
x25 = 3.93699148377394
x26 = 90.3107881239199
x27 = 22.7865474053127
x28 = 2.34619382340565
x29 = -8.62937913058524
x30 = 60.4856592483902
x31 = -14.9125644377648
x32 = -60.4856592483902
x33 = 77.7444175095607
x34 = -46.3284909736628
x35 = -10.2201767909535
x36 = -91.9015857842881
x37 = 41.6361033268515
x38 = 58.8948615880219
x39 = -29.0697327124923
x40 = 33.7621203593036
x41 = -85.6184004771086
x42 = 52.6116762808423
x43 = 47.919288634031
x44 = 14.9125644377648
x45 = 8.62937913058524
x46 = -79.335215169929
x47 = -58.8948615880219
x48 = 96.5939734310994
x49 = -35.3529180196719
x50 = 85.6184004771086
x51 = -98.1847710914677
x52 = 54.2024739412106
x53 = 91.9015857842881
x54 = -21.1957497449444
x55 = 21.1957497449444
x56 = -77.7444175095607
x57 = -54.2024739412106
x58 = 40.0453056664832
x59 = 71.4612322023811
x60 = 84.0276028167403
x61 = -5990.22179156555
x62 = 10.2201767909535
x63 = 588.273225051475
x64 = -27.478935052124
x65 = -40.0453056664832
x66 = -16.5033620981331
x67 = -66.7688445555698
x67 = -66.7688445555698