Sr Examen

Otras calculadoras

2^x-x^4=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]
 x    4    
2  - x  = 0
$$2^{x} - x^{4} = 0$$
Suma y producto de raíces [src]
suma
        /-log(2) \      /log(2)\
     4*W|--------|   4*W|------|
        \   4    /      \  4   /
16 - ------------- - -----------
         log(2)         log(2)  
$$- \frac{4 W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} + \left(- \frac{4 W\left(- \frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} + 16\right)$$
=
        /-log(2) \      /log(2)\
     4*W|--------|   4*W|------|
        \   4    /      \  4   /
16 - ------------- - -----------
         log(2)         log(2)  
$$- \frac{4 W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} - \frac{4 W\left(- \frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} + 16$$
producto
       /-log(2) \     /log(2)\
   -4*W|--------| -4*W|------|
       \   4    /     \  4   /
16*--------------*------------
       log(2)        log(2)   
$$- \frac{4 W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}} 16 \left(- \frac{4 W\left(- \frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}}\right)$$
=
     /-log(2) \  /log(2)\
256*W|--------|*W|------|
     \   4    /  \  4   /
-------------------------
            2            
         log (2)         
$$\frac{256 W\left(- \frac{\log{\left(2 \right)}}{4}\right) W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}^{2}}$$
256*LambertW(-log(2)/4)*LambertW(log(2)/4)/log(2)^2
Respuesta rápida [src]
x1 = 16
$$x_{1} = 16$$
         /-log(2) \
     -4*W|--------|
         \   4    /
x2 = --------------
         log(2)    
$$x_{2} = - \frac{4 W\left(- \frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}}$$
         /log(2)\
     -4*W|------|
         \  4   /
x3 = ------------
        log(2)   
$$x_{3} = - \frac{4 W\left(\frac{\log{\left(2 \right)}}{4}\right)}{\log{\left(2 \right)}}$$
x3 = -4*LambertW(log(2)/4)/log(2)
Respuesta numérica [src]
x1 = 1.23962772952276
x2 = -0.861345332309651
x3 = 16.0
x3 = 16.0