Sr Examen

Otras calculadoras

sin(2/3*x)=sqrt(2)/2 la ecuación

El profesor se sorprenderá mucho al ver tu solución correcta😉

v

Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
             ___
   /2*x\   \/ 2 
sin|---| = -----
   \ 3 /     2  
$$\sin{\left(\frac{2 x}{3} \right)} = \frac{\sqrt{2}}{2}$$
Solución detallada
Tenemos la ecuación
$$\sin{\left(\frac{2 x}{3} \right)} = \frac{\sqrt{2}}{2}$$
es la ecuación trigonométrica más simple
Esta ecuación se reorganiza en
$$\frac{2 x}{3} = 2 \pi n + \operatorname{asin}{\left(\frac{\sqrt{2}}{2} \right)}$$
$$\frac{2 x}{3} = 2 \pi n - \operatorname{asin}{\left(\frac{\sqrt{2}}{2} \right)} + \pi$$
O
$$\frac{2 x}{3} = 2 \pi n + \frac{\pi}{4}$$
$$\frac{2 x}{3} = 2 \pi n + \frac{3 \pi}{4}$$
, donde n es cualquier número entero
Dividamos ambos miembros de la ecuación obtenida en
$$\frac{2}{3}$$
obtenemos la respuesta:
$$x_{1} = 3 \pi n + \frac{3 \pi}{8}$$
$$x_{2} = 3 \pi n + \frac{9 \pi}{8}$$
Gráfica
Respuesta rápida [src]
     3*pi
x1 = ----
      8  
$$x_{1} = \frac{3 \pi}{8}$$
     9*pi
x2 = ----
      8  
$$x_{2} = \frac{9 \pi}{8}$$
x2 = 9*pi/8
Suma y producto de raíces [src]
suma
3*pi   9*pi
---- + ----
 8      8  
$$\frac{3 \pi}{8} + \frac{9 \pi}{8}$$
=
3*pi
----
 2  
$$\frac{3 \pi}{2}$$
producto
3*pi 9*pi
----*----
 8    8  
$$\frac{3 \pi}{8} \frac{9 \pi}{8}$$
=
     2
27*pi 
------
  64  
$$\frac{27 \pi^{2}}{64}$$
27*pi^2/64
Respuesta numérica [src]
x1 = -8.24668071567321
x2 = 97.7820713429823
x3 = -34.164820107789
x4 = -62.4391539900971
x5 = -90.7134878724053
x6 = -45.9457925587507
x7 = 3.53429173528852
x8 = 67.1515429704818
x9 = -15.3152641862502
x10 = 50.6581815391354
x11 = -71.8639319508665
x12 = -53.0143760293278
x13 = -17.6714586764426
x14 = 531.321857538374
x15 = 88.3572933822129
x16 = -74.2201264410589
x17 = -100.138265833175
x18 = -64.7953484802895
x19 = 60.0829594999048
x20 = 38.8772090881737
x21 = -307.483380970101
x22 = -5.89048622548086
x23 = 10.6028752058656
x24 = 76.5763209312512
x25 = 1.17809724509617
x26 = 144.905961146829
x27 = 20.0276531666349
x28 = 95.42587685279
x29 = 22.3838476568273
x30 = -43.5895980685584
x31 = -27.096236637212
x32 = -36.5210145979813
x33 = 41.233403578366
x34 = 12.9590696960579
x35 = -81.2887099116359
x36 = 78.9325154214436
x37 = -24.7400421470196
x38 = 378.169215675871
x39 = 69.5077374606742
x40 = -109.563043793944
x41 = 29.4524311274043
x42 = -93.0696823625976
x43 = 86.0010988920206
x44 = 48.3019870489431
x45 = -55.3705705195201
x46 = 57.7267650097125
x47 = 31.8086256175967
x48 = -83.6449044018282
x48 = -83.6449044018282