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cos(x)=-1/4

cos(x)=-1/4 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
cos(x) = -1/4
$$\cos{\left(x \right)} = - \frac{1}{4}$$
Solución detallada
Tenemos la ecuación
$$\cos{\left(x \right)} = - \frac{1}{4}$$
es la ecuación trigonométrica más simple
Esta ecuación se reorganiza en
$$x = \pi n + \operatorname{acos}{\left(- \frac{1}{4} \right)}$$
$$x = \pi n - \pi + \operatorname{acos}{\left(- \frac{1}{4} \right)}$$
O
$$x = \pi n + \operatorname{acos}{\left(- \frac{1}{4} \right)}$$
$$x = \pi n - \pi + \operatorname{acos}{\left(- \frac{1}{4} \right)}$$
, donde n es cualquier número entero
Gráfica
Respuesta rápida [src]
x1 = -acos(-1/4) + 2*pi
$$x_{1} = - \operatorname{acos}{\left(- \frac{1}{4} \right)} + 2 \pi$$
x2 = acos(-1/4)
$$x_{2} = \operatorname{acos}{\left(- \frac{1}{4} \right)}$$
x2 = acos(-1/4)
Suma y producto de raíces [src]
suma
-acos(-1/4) + 2*pi + acos(-1/4)
$$\operatorname{acos}{\left(- \frac{1}{4} \right)} + \left(- \operatorname{acos}{\left(- \frac{1}{4} \right)} + 2 \pi\right)$$
=
2*pi
$$2 \pi$$
producto
(-acos(-1/4) + 2*pi)*acos(-1/4)
$$\left(- \operatorname{acos}{\left(- \frac{1}{4} \right)} + 2 \pi\right) \operatorname{acos}{\left(- \frac{1}{4} \right)}$$
=
(-acos(-1/4) + 2*pi)*acos(-1/4)
$$\left(- \operatorname{acos}{\left(- \frac{1}{4} \right)} + 2 \pi\right) \operatorname{acos}{\left(- \frac{1}{4} \right)}$$
(-acos(-1/4) + 2*pi)*acos(-1/4)
Respuesta numérica [src]
x1 = 70.9385149609124
x2 = 52.0889590393737
x3 = -26.9562178106553
x4 = 92.4243030257568
x5 = 10.7428940324222
x6 = -77.221700268092
x7 = 8.10666188911656
x8 = -4.45970872524261
x9 = 39.5225884250145
x10 = -39.5225884250145
x11 = -61.0083764898589
x12 = -1.82347658193698
x13 = -79.8579324113977
x14 = -67.2915617970385
x15 = -98.7074883329364
x16 = 67.2915617970385
x17 = 83.5048855752716
x18 = -10.7428940324222
x19 = -20.6730325034757
x20 = 45.8057737321941
x21 = 14.3898471962961
x22 = 35.8756352611405
x23 = -92.4243030257568
x24 = -73.5747471042181
x25 = 20.6730325034757
x26 = 79.8579324113977
x27 = 54.7251911826793
x28 = 33.2394031178349
x29 = -29.592449953961
x30 = -52.0889590393737
x31 = 77.221700268092
x32 = 96.0712561896308
x33 = -14.3898471962961
x34 = -45.8057737321941
x35 = -70.9385149609124
x36 = -96.0712561896308
x37 = 98.7074883329364
x38 = -89.7880708824512
x39 = -48.4420058754997
x40 = 23.3092646467814
x41 = -64.6553296537328
x42 = 89.7880708824512
x43 = 64.6553296537328
x44 = 61.0083764898589
x45 = -42.1588205683201
x46 = 26.9562178106553
x47 = -17.0260793396018
x48 = 58.3721443465533
x49 = 4.45970872524261
x50 = -8.10666188911656
x51 = 73.5747471042181
x52 = -23.3092646467814
x53 = -83.5048855752716
x54 = -86.1411177185772
x55 = 86.1411177185772
x56 = -35.8756352611405
x57 = 48.4420058754997
x58 = 17.0260793396018
x59 = 29.592449953961
x60 = -58.3721443465533
x61 = -54.7251911826793
x62 = 42.1588205683201
x63 = 1.82347658193698
x64 = -33.2394031178349
x64 = -33.2394031178349
Gráfico
cos(x)=-1/4 la ecuación