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(sina)^4/(sinx)^2+(cosa)^4/(cosx)^2=1 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
   4         4       
sin (a)   cos (a)    
------- + ------- = 1
   2         2       
sin (x)   cos (x)    
$$\frac{\sin^{4}{\left(a \right)}}{\sin^{2}{\left(x \right)}} + \frac{\cos^{4}{\left(a \right)}}{\cos^{2}{\left(x \right)}} = 1$$
Gráfica
Respuesta rápida [src]
           /    /  1   \\         /    /  1   \\
x1 = - 2*re|atan|------|| - 2*I*im|atan|------||
           |    |   /a\||         |    |   /a\||
           |    |tan|-|||         |    |tan|-|||
           \    \   \2///         \    \   \2///
$$x_{1} = - 2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)}$$
         /    /  1   \\         /    /  1   \\
x2 = 2*re|atan|------|| + 2*I*im|atan|------||
         |    |   /a\||         |    |   /a\||
         |    |tan|-|||         |    |tan|-|||
         \    \   \2///         \    \   \2///
$$x_{2} = 2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)}$$
           /    /   /a\\\         /    /   /a\\\
x3 = - 2*re|atan|tan|-||| - 2*I*im|atan|tan|-|||
           \    \   \2///         \    \   \2///
$$x_{3} = - 2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)}$$
         /    /   /a\\\         /    /   /a\\\
x4 = 2*re|atan|tan|-||| + 2*I*im|atan|tan|-|||
         \    \   \2///         \    \   \2///
$$x_{4} = 2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)}$$
x4 = 2*re(atan(tan(a/2))) + 2*i*im(atan(tan(a/2)))
Suma y producto de raíces [src]
suma
      /    /  1   \\         /    /  1   \\       /    /  1   \\         /    /  1   \\         /    /   /a\\\         /    /   /a\\\       /    /   /a\\\         /    /   /a\\\
- 2*re|atan|------|| - 2*I*im|atan|------|| + 2*re|atan|------|| + 2*I*im|atan|------|| + - 2*re|atan|tan|-||| - 2*I*im|atan|tan|-||| + 2*re|atan|tan|-||| + 2*I*im|atan|tan|-|||
      |    |   /a\||         |    |   /a\||       |    |   /a\||         |    |   /a\||         \    \   \2///         \    \   \2///       \    \   \2///         \    \   \2///
      |    |tan|-|||         |    |tan|-|||       |    |tan|-|||         |    |tan|-|||                                                                                          
      \    \   \2///         \    \   \2///       \    \   \2///         \    \   \2///                                                                                          
$$\left(\left(\left(- 2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)}\right) + \left(2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)}\right)\right) + \left(- 2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)}\right)\right) + \left(2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)}\right)$$
=
0
$$0$$
producto
/      /    /  1   \\         /    /  1   \\\ /    /    /  1   \\         /    /  1   \\\ /      /    /   /a\\\         /    /   /a\\\\ /    /    /   /a\\\         /    /   /a\\\\
|- 2*re|atan|------|| - 2*I*im|atan|------|||*|2*re|atan|------|| + 2*I*im|atan|------|||*|- 2*re|atan|tan|-||| - 2*I*im|atan|tan|-||||*|2*re|atan|tan|-||| + 2*I*im|atan|tan|-||||
|      |    |   /a\||         |    |   /a\||| |    |    |   /a\||         |    |   /a\||| \      \    \   \2///         \    \   \2//// \    \    \   \2///         \    \   \2////
|      |    |tan|-|||         |    |tan|-|||| |    |    |tan|-|||         |    |tan|-||||                                                                                          
\      \    \   \2///         \    \   \2//// \    \    \   \2///         \    \   \2////                                                                                          
$$\left(- 2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)}\right) \left(2 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)}\right) \left(- 2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)} - 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)}\right) \left(2 \operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)} + 2 i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)}\right)$$
=
                                          2                                        2
   /    /    /  1   \\     /    /  1   \\\  /    /    /   /a\\\     /    /   /a\\\\ 
16*|I*im|atan|------|| + re|atan|------||| *|I*im|atan|tan|-||| + re|atan|tan|-|||| 
   |    |    |   /a\||     |    |   /a\|||  \    \    \   \2///     \    \   \2//// 
   |    |    |tan|-|||     |    |tan|-||||                                          
   \    \    \   \2///     \    \   \2////                                          
$$16 \left(\operatorname{re}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)} + i \operatorname{im}{\left(\operatorname{atan}{\left(\frac{1}{\tan{\left(\frac{a}{2} \right)}} \right)}\right)}\right)^{2} \left(\operatorname{re}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)} + i \operatorname{im}{\left(\operatorname{atan}{\left(\tan{\left(\frac{a}{2} \right)} \right)}\right)}\right)^{2}$$
16*(i*im(atan(1/tan(a/2))) + re(atan(1/tan(a/2))))^2*(i*im(atan(tan(a/2))) + re(atan(tan(a/2))))^2