Sr Examen

Otras calculadoras

sqrt(3)*(x^3-1)+i*(x^3+1)=0 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]
  ___ / 3    \     / 3    \    
\/ 3 *\x  - 1/ + I*\x  + 1/ = 0
$$\sqrt{3} \left(x^{3} - 1\right) + i \left(x^{3} + 1\right) = 0$$
Gráfica
Respuesta rápida [src]
            /pi\      /pi\
x1 = - I*sin|--| + cos|--|
            \9 /      \9 /
$$x_{1} = \cos{\left(\frac{\pi}{9} \right)} - i \sin{\left(\frac{\pi}{9} \right)}$$
          /pi\     /   /pi\     ___    /pi\\     ___    /pi\
       cos|--|     |sin|--|   \/ 3 *cos|--||   \/ 3 *sin|--|
          \9 /     |   \9 /            \9 /|            \9 /
x2 = - ------- + I*|------- - -------------| - -------------
          2        \   2            2      /         2      
$$x_{2} = - \frac{\cos{\left(\frac{\pi}{9} \right)}}{2} - \frac{\sqrt{3} \sin{\left(\frac{\pi}{9} \right)}}{2} + i \left(- \frac{\sqrt{3} \cos{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sin{\left(\frac{\pi}{9} \right)}}{2}\right)$$
          /pi\     /   /pi\     ___    /pi\\     ___    /pi\
       cos|--|     |sin|--|   \/ 3 *cos|--||   \/ 3 *sin|--|
          \9 /     |   \9 /            \9 /|            \9 /
x3 = - ------- + I*|------- + -------------| + -------------
          2        \   2            2      /         2      
$$x_{3} = - \frac{\cos{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sqrt{3} \sin{\left(\frac{\pi}{9} \right)}}{2} + i \left(\frac{\sin{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sqrt{3} \cos{\left(\frac{\pi}{9} \right)}}{2}\right)$$
x3 = -cos(pi/9)/2 + sqrt(3)*sin(pi/9)/2 + i*(sin(pi/9)/2 + sqrt(3)*cos(pi/9)/2)
Suma y producto de raíces [src]
suma
                             /pi\     /   /pi\     ___    /pi\\     ___    /pi\        /pi\     /   /pi\     ___    /pi\\     ___    /pi\
                          cos|--|     |sin|--|   \/ 3 *cos|--||   \/ 3 *sin|--|     cos|--|     |sin|--|   \/ 3 *cos|--||   \/ 3 *sin|--|
       /pi\      /pi\        \9 /     |   \9 /            \9 /|            \9 /        \9 /     |   \9 /            \9 /|            \9 /
- I*sin|--| + cos|--| + - ------- + I*|------- - -------------| - ------------- + - ------- + I*|------- + -------------| + -------------
       \9 /      \9 /        2        \   2            2      /         2              2        \   2            2      /         2      
$$\left(\left(- \frac{\cos{\left(\frac{\pi}{9} \right)}}{2} - \frac{\sqrt{3} \sin{\left(\frac{\pi}{9} \right)}}{2} + i \left(- \frac{\sqrt{3} \cos{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sin{\left(\frac{\pi}{9} \right)}}{2}\right)\right) + \left(\cos{\left(\frac{\pi}{9} \right)} - i \sin{\left(\frac{\pi}{9} \right)}\right)\right) + \left(- \frac{\cos{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sqrt{3} \sin{\left(\frac{\pi}{9} \right)}}{2} + i \left(\frac{\sin{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sqrt{3} \cos{\left(\frac{\pi}{9} \right)}}{2}\right)\right)$$
=
  /   /pi\     ___    /pi\\     /   /pi\     ___    /pi\\            
  |sin|--|   \/ 3 *cos|--||     |sin|--|   \/ 3 *cos|--||            
  |   \9 /            \9 /|     |   \9 /            \9 /|        /pi\
I*|------- + -------------| + I*|------- - -------------| - I*sin|--|
  \   2            2      /     \   2            2      /        \9 /
$$i \left(- \frac{\sqrt{3} \cos{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sin{\left(\frac{\pi}{9} \right)}}{2}\right) - i \sin{\left(\frac{\pi}{9} \right)} + i \left(\frac{\sin{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sqrt{3} \cos{\left(\frac{\pi}{9} \right)}}{2}\right)$$
producto
                        /     /pi\     /   /pi\     ___    /pi\\     ___    /pi\\ /     /pi\     /   /pi\     ___    /pi\\     ___    /pi\\
                        |  cos|--|     |sin|--|   \/ 3 *cos|--||   \/ 3 *sin|--|| |  cos|--|     |sin|--|   \/ 3 *cos|--||   \/ 3 *sin|--||
/       /pi\      /pi\\ |     \9 /     |   \9 /            \9 /|            \9 /| |     \9 /     |   \9 /            \9 /|            \9 /|
|- I*sin|--| + cos|--||*|- ------- + I*|------- - -------------| - -------------|*|- ------- + I*|------- + -------------| + -------------|
\       \9 /      \9 // \     2        \   2            2      /         2      / \     2        \   2            2      /         2      /
$$\left(\cos{\left(\frac{\pi}{9} \right)} - i \sin{\left(\frac{\pi}{9} \right)}\right) \left(- \frac{\cos{\left(\frac{\pi}{9} \right)}}{2} - \frac{\sqrt{3} \sin{\left(\frac{\pi}{9} \right)}}{2} + i \left(- \frac{\sqrt{3} \cos{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sin{\left(\frac{\pi}{9} \right)}}{2}\right)\right) \left(- \frac{\cos{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sqrt{3} \sin{\left(\frac{\pi}{9} \right)}}{2} + i \left(\frac{\sin{\left(\frac{\pi}{9} \right)}}{2} + \frac{\sqrt{3} \cos{\left(\frac{\pi}{9} \right)}}{2}\right)\right)$$
=
        ___
1   I*\/ 3 
- - -------
2      2   
$$\frac{1}{2} - \frac{\sqrt{3} i}{2}$$
1/2 - i*sqrt(3)/2
Respuesta numérica [src]
x1 = -0.17364817766693 + 0.984807753012208*i
x2 = -0.766044443118978 - 0.642787609686539*i
x3 = 0.939692620785908 - 0.342020143325669*i
x3 = 0.939692620785908 - 0.342020143325669*i