Sr Examen

Otras calculadoras

sin(y)*cos(x)=cos(y)*sin(x) 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]
sin(y)*cos(x) = cos(y)*sin(x)
sin(y)cos(x)=sin(x)cos(y)\sin{\left(y \right)} \cos{\left(x \right)} = \sin{\left(x \right)} \cos{\left(y \right)}
Solución detallada
Tenemos la ecuación
sin(y)cos(x)=sin(x)cos(y)\sin{\left(y \right)} \cos{\left(x \right)} = \sin{\left(x \right)} \cos{\left(y \right)}
cambiamos:
sin(x)cos(y)cos(x)=sin(y)- \frac{\sin{\left(x \right)} \cos{\left(y \right)}}{\cos{\left(x \right)}} = - \sin{\left(y \right)}
o
cos(y)tan(x)=sin(y)- \cos{\left(y \right)} \tan{\left(x \right)} = - \sin{\left(y \right)}
es la ecuación trigonométrica más simple
Dividamos ambos miembros de la ecuación en -cos(y)

La ecuación se convierte en
tan(x)=sin(y)cos(y)\tan{\left(x \right)} = - \frac{\sin{\left(y \right)}}{\cos{\left(y \right)}}
Esta ecuación se reorganiza en
x=πn+atan(sin(y)cos(y))x = \pi n + \operatorname{atan}{\left(- \frac{\sin{\left(y \right)}}{\cos{\left(y \right)}} \right)}
O
x=πnatan(sin(y)cos(y))x = \pi n - \operatorname{atan}{\left(\frac{\sin{\left(y \right)}}{\cos{\left(y \right)}} \right)}
, donde n es cualquier número entero
Gráfica
Suma y producto de raíces [src]
suma
      /    /  1   \\         /    /  1   \\       /    /   /y\\\         /    /   /y\\\
- 2*re|atan|------|| - 2*I*im|atan|------|| + 2*re|atan|tan|-||| + 2*I*im|atan|tan|-|||
      |    |   /y\||         |    |   /y\||       \    \   \2///         \    \   \2///
      |    |tan|-|||         |    |tan|-|||                                            
      \    \   \2///         \    \   \2///                                            
(2re(atan(1tan(y2)))2iim(atan(1tan(y2))))+(2re(atan(tan(y2)))+2iim(atan(tan(y2))))\left(- 2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)}\right) + \left(2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)}\right)
=
      /    /  1   \\       /    /   /y\\\         /    /  1   \\         /    /   /y\\\
- 2*re|atan|------|| + 2*re|atan|tan|-||| - 2*I*im|atan|------|| + 2*I*im|atan|tan|-|||
      |    |   /y\||       \    \   \2///         |    |   /y\||         \    \   \2///
      |    |tan|-|||                              |    |tan|-|||                       
      \    \   \2///                              \    \   \2///                       
2re(atan(1tan(y2)))+2re(atan(tan(y2)))2iim(atan(1tan(y2)))+2iim(atan(tan(y2)))- 2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)} + 2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)}
producto
/      /    /  1   \\         /    /  1   \\\ /    /    /   /y\\\         /    /   /y\\\\
|- 2*re|atan|------|| - 2*I*im|atan|------|||*|2*re|atan|tan|-||| + 2*I*im|atan|tan|-||||
|      |    |   /y\||         |    |   /y\||| \    \    \   \2///         \    \   \2////
|      |    |tan|-|||         |    |tan|-||||                                            
\      \    \   \2///         \    \   \2////                                            
(2re(atan(1tan(y2)))2iim(atan(1tan(y2))))(2re(atan(tan(y2)))+2iim(atan(tan(y2))))\left(- 2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)}\right) \left(2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)}\right)
=
   /    /    /  1   \\     /    /  1   \\\ /    /    /   /y\\\     /    /   /y\\\\
-4*|I*im|atan|------|| + re|atan|------|||*|I*im|atan|tan|-||| + re|atan|tan|-||||
   |    |    |   /y\||     |    |   /y\||| \    \    \   \2///     \    \   \2////
   |    |    |tan|-|||     |    |tan|-||||                                        
   \    \    \   \2///     \    \   \2////                                        
4(re(atan(1tan(y2)))+iim(atan(1tan(y2))))(re(atan(tan(y2)))+iim(atan(tan(y2))))- 4 \left(\operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)} + i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)}\right) \left(\operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)} + i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)}\right)
-4*(i*im(atan(1/tan(y/2))) + re(atan(1/tan(y/2))))*(i*im(atan(tan(y/2))) + re(atan(tan(y/2))))
Respuesta rápida [src]
           /    /  1   \\         /    /  1   \\
x1 = - 2*re|atan|------|| - 2*I*im|atan|------||
           |    |   /y\||         |    |   /y\||
           |    |tan|-|||         |    |tan|-|||
           \    \   \2///         \    \   \2///
x1=2re(atan(1tan(y2)))2iim(atan(1tan(y2)))x_{1} = - 2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{y}{2} \right)}} \right)}\right)}
         /    /   /y\\\         /    /   /y\\\
x2 = 2*re|atan|tan|-||| + 2*I*im|atan|tan|-|||
         \    \   \2///         \    \   \2///
x2=2re(atan(tan(y2)))+2iim(atan(tan(y2)))x_{2} = 2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{y}{2} \right)} \right)}\right)}
x2 = 2*re(atan(tan(y/2))) + 2*i*im(atan(tan(y/2)))