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- La ecuación:
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Ecuación x^4+2*x^2-8=0
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Ecuación x*(x^2+8*x+16)=5*(x+4)
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Ecuación ((57.6/(150-x))^0.15)*((150+x)+10)/171.712=1
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Ecuación x^2+3x=4
- Expresar {x} en función de y en la ecuación:
- -18*x-2*y=9
- -14*x+10*y=19
- -9*x+1*y=3
- -17*x+1*y=-11
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Expresiones idénticas
- z=cos(-x+3y)
- z es igual a coseno de ( menos x más 3y)
- z=cos-x+3y
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Expresiones semejantes
- z=cos(x+3y)
- z=cos(-x-3y)
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Expresiones con funciones
- Coseno cos
- cos(x)=sqrt(3)
- cos2x=1/2
- cos(2*x)+3*sin(x)-2=0
- cos(2*x)+sqrt(2)*sin(x)+1=0
- cos(pi+x)=1/2
z=cos(-x+3y) la ecuación
El profesor se sorprenderá mucho al ver tu solución correcta😉
Solución
Gráfica
Respuesta rápida
[src]
z1 = cos(-3*re(y) + re(x))*cosh(-3*im(y) + im(x)) - I*sin(-3*re(y) + re(x))*sinh(-3*im(y) + im(x))
$$z_{1} = - i \sin{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \sinh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)} + \cos{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \cosh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)}$$
z1 = -i*sin(re(x) - 3*re(y))*sinh(im(x) - 3*im(y)) + cos(re(x) - 3*re(y))*cosh(im(x) - 3*im(y))
Suma y producto de raíces
[src]
suma
cos(-3*re(y) + re(x))*cosh(-3*im(y) + im(x)) - I*sin(-3*re(y) + re(x))*sinh(-3*im(y) + im(x))
$$- i \sin{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \sinh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)} + \cos{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \cosh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)}$$
=
cos(-3*re(y) + re(x))*cosh(-3*im(y) + im(x)) - I*sin(-3*re(y) + re(x))*sinh(-3*im(y) + im(x))
$$- i \sin{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \sinh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)} + \cos{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \cosh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)}$$
producto
cos(-3*re(y) + re(x))*cosh(-3*im(y) + im(x)) - I*sin(-3*re(y) + re(x))*sinh(-3*im(y) + im(x))
$$- i \sin{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \sinh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)} + \cos{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \cosh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)}$$
=
cos(-3*re(y) + re(x))*cosh(-3*im(y) + im(x)) - I*sin(-3*re(y) + re(x))*sinh(-3*im(y) + im(x))
$$- i \sin{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \sinh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)} + \cos{\left(\operatorname{re}{\left(x\right)} - 3 \operatorname{re}{\left(y\right)} \right)} \cosh{\left(\operatorname{im}{\left(x\right)} - 3 \operatorname{im}{\left(y\right)} \right)}$$
cos(-3*re(y) + re(x))*cosh(-3*im(y) + im(x)) - i*sin(-3*re(y) + re(x))*sinh(-3*im(y) + im(x))