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cos*((pi(4x+48))/4)=-(sqrt(2)/2) la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
                        ___ 
   /pi*(4*x + 48)\   -\/ 2  
cos|-------------| = -------
   \      4      /      2   
$$\cos{\left(\frac{\pi \left(4 x + 48\right)}{4} \right)} = - \frac{\sqrt{2}}{2}$$
Solución detallada
Tenemos la ecuación
$$\cos{\left(\frac{\pi \left(4 x + 48\right)}{4} \right)} = - \frac{\sqrt{2}}{2}$$
es la ecuación trigonométrica más simple
Esta ecuación se reorganiza en
$$\pi x = \pi n + \operatorname{acos}{\left(- \frac{\sqrt{2}}{2} \right)}$$
$$\pi x = \pi n - \pi + \operatorname{acos}{\left(- \frac{\sqrt{2}}{2} \right)}$$
O
$$\pi x = \pi n + \frac{3 \pi}{4}$$
$$\pi x = \pi n - \frac{\pi}{4}$$
, donde n es cualquier número entero
Dividamos ambos miembros de la ecuación obtenida en
$$\pi$$
obtenemos la respuesta:
$$x_{1} = \frac{\pi n + \frac{3 \pi}{4}}{\pi}$$
$$x_{2} = \frac{\pi n - \frac{\pi}{4}}{\pi}$$
Gráfica
Suma y producto de raíces [src]
suma
3/4 + 5/4
$$\frac{3}{4} + \frac{5}{4}$$
=
2
$$2$$
producto
3*5
---
4*4
$$\frac{3 \cdot 5}{4 \cdot 4}$$
=
15
--
16
$$\frac{15}{16}$$
15/16
Respuesta rápida [src]
x1 = 3/4
$$x_{1} = \frac{3}{4}$$
x2 = 5/4
$$x_{2} = \frac{5}{4}$$
x2 = 5/4
Respuesta numérica [src]
x1 = -31.25
x2 = 96.75
x3 = -85.25
x4 = 48.75
x5 = 84.75
x6 = 20.75
x7 = -9.25
x8 = 34.75
x9 = -63.25
x10 = 38.75
x11 = 98.75
x12 = 28.75
x13 = 70.75
x14 = 8.75
x15 = -27.25
x16 = 14.75
x17 = -79.25
x18 = 86.75
x19 = 30.75
x20 = -67.25
x21 = -95.25
x22 = -61.25
x23 = 100.75
x24 = 40.75
x25 = -87.25
x26 = 54.75
x27 = -13.25
x28 = -29.25
x29 = 32.75
x30 = 44.75
x31 = 66.75
x32 = 22.75
x33 = -43.25
x34 = 24.75
x35 = 82.75
x36 = -93.25
x37 = -7.25
x38 = 78.75
x39 = 60.75
x40 = 52.75
x41 = -91.25
x42 = 42.75
x43 = 46.75
x44 = -21.25
x45 = 94.75
x46 = -51.25
x47 = -75.25
x48 = 58.75
x49 = -33.25
x50 = 74.75
x51 = -49.25
x52 = -15.25
x53 = -11.25
x54 = 62.75
x55 = -83.25
x56 = -3.25
x57 = 6.75
x58 = -53.25
x59 = -17.25
x60 = -59.25
x61 = 12.75
x62 = 76.75
x63 = -1.25
x64 = -25.25
x65 = 16.75
x66 = 26.75
x67 = -19.25
x68 = -77.25
x69 = 72.75
x70 = -73.25
x71 = 36.75
x72 = -47.25
x73 = -65.25
x74 = -35.25
x75 = -57.25
x76 = -89.25
x77 = 4.75
x78 = -71.25
x79 = 68.75
x80 = 0.75
x81 = -81.25
x82 = -5.25
x83 = 92.75
x84 = 90.75
x85 = 2.75
x86 = -23.25
x87 = -37.25
x88 = -45.25
x89 = 80.75
x90 = -41.25
x91 = -55.25
x92 = -39.25
x93 = -69.25
x94 = 50.75
x95 = 88.75
x96 = 18.75
x97 = 10.75
x98 = 64.75
x99 = 56.75
x100 = -97.25
x101 = -99.25
x101 = -99.25