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cos(x-3/4)=0 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
cos(x - 3/4) = 0
$$\cos{\left(x - \frac{3}{4} \right)} = 0$$
Solución detallada
Tenemos la ecuación
$$\cos{\left(x - \frac{3}{4} \right)} = 0$$
es la ecuación trigonométrica más simple
cambiando el signo de 0

Obtenemos:
$$\cos{\left(x - \frac{3}{4} \right)} = 0$$
Esta ecuación se reorganiza en
$$x - \frac{3}{4} = \pi n + \operatorname{acos}{\left(0 \right)}$$
$$x - \frac{3}{4} = \pi n - \pi + \operatorname{acos}{\left(0 \right)}$$
O
$$x - \frac{3}{4} = \pi n + \frac{\pi}{2}$$
$$x - \frac{3}{4} = \pi n - \frac{\pi}{2}$$
, donde n es cualquier número entero
Transportemos
$$- \frac{3}{4}$$
al miembro derecho de la ecuación
con el signo opuesto, en total:
$$x = \pi n + \frac{3}{4} + \frac{\pi}{2}$$
$$x = \pi n - \frac{\pi}{2} + \frac{3}{4}$$
Gráfica
Respuesta rápida [src]
     3   pi
x1 = - + --
     4   2 
$$x_{1} = \frac{3}{4} + \frac{\pi}{2}$$
     3   3*pi
x2 = - + ----
     4    2  
$$x_{2} = \frac{3}{4} + \frac{3 \pi}{2}$$
x2 = 3/4 + 3*pi/2
Suma y producto de raíces [src]
suma
3   pi   3   3*pi
- + -- + - + ----
4   2    4    2  
$$\left(\frac{3}{4} + \frac{\pi}{2}\right) + \left(\frac{3}{4} + \frac{3 \pi}{2}\right)$$
=
3/2 + 2*pi
$$\frac{3}{2} + 2 \pi$$
producto
/3   pi\ /3   3*pi\
|- + --|*|- + ----|
\4   2 / \4    2  /
$$\left(\frac{3}{4} + \frac{\pi}{2}\right) \left(\frac{3}{4} + \frac{3 \pi}{2}\right)$$
=
                2
9    3*pi   3*pi 
-- + ---- + -----
16    2       4  
$$\frac{9}{16} + \frac{3 \pi}{2} + \frac{3 \pi^{2}}{4}$$
9/16 + 3*pi/2 + 3*pi^2/4
Respuesta numérica [src]
x1 = -25.9535375555132
x2 = -85.6437979737193
x3 = 30.595130209103
x4 = -10.2455742875643
x5 = -88.7853906273091
x6 = -91.9269832808989
x7 = 43.1615008234622
x8 = -79.3606126665397
x9 = 24.3119449019235
x10 = 58.8694640914112
x11 = 65.1526493985908
x12 = -98.2101685880785
x13 = 2.3207963267949
x14 = 18.0287595947439
x15 = -13.3871669411541
x16 = 87.1437979737193
x17 = -44.803093477052
x18 = -113.918131856027
x19 = 36.8783155162826
x20 = 21.1703522483337
x21 = -47.9446861306418
x22 = 84.0022053201295
x23 = 40.0199081698724
x24 = 93.4269832808989
x25 = -29.095130209103
x26 = -51.0862787842316
x27 = 77.7190200129499
x28 = -69.9358347057703
x29 = -280.422542496286
x30 = -1461.66138024605
x31 = 8.60398163397448
x32 = -7.10398163397448
x33 = 80.8606126665397
x34 = 62.011056745001
x35 = -32.2367228626928
x36 = -73.0774273593601
x37 = -3.96238898038469
x38 = 90.2853906273091
x39 = -60.511056745001
x40 = 96.5685759344887
x41 = -54.2278714378214
x42 = 49.4446861306418
x43 = -66.7942420521806
x44 = 68.2942420521806
x45 = -107.634946548848
x46 = -76.2190200129499
x47 = -22.8119449019235
x48 = 55.7278714378214
x49 = -82.5022053201295
x50 = -286.705727803466
x51 = -38.5199081698724
x52 = -57.3694640914112
x53 = 33.7367228626928
x54 = 52.5862787842316
x55 = 27.4535375555132
x56 = 99.7101685880785
x57 = 46.303093477052
x58 = -63.6526493985908
x59 = 14.8871669411541
x60 = -95.0685759344887
x61 = -41.6615008234622
x62 = 11.7455742875643
x63 = -16.5287595947439
x64 = 71.4358347057703
x65 = -35.3783155162826
x66 = 74.5774273593601
x67 = 5.46238898038469
x68 = -19.6703522483337
x69 = -0.820796326794897
x69 = -0.820796326794897