absolute((x-sqrt(2))*(x-sqrt(3)))=0,025 la ecuación
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Solución
Solución detallada
Para cada expresión dentro del módulo en la ecuación
admitimos los casos cuando la expresión correspondiente es ">= 0" o "< 0",
resolvemos las ecuaciones obtenidas.
1. ( x − 2 ) ( x − 3 ) ≥ 0 \left(x - \sqrt{2}\right) \left(x - \sqrt{3}\right) \geq 0 ( x − 2 ) ( x − 3 ) ≥ 0 o
( x ≤ − 5 − 2 6 2 + 2 2 + 3 2 ∧ − ∞ < x ) ∨ ( 5 − 2 6 2 + 2 2 + 3 2 ≤ x ∧ x < ∞ ) \left(x \leq - \frac{\sqrt{5 - 2 \sqrt{6}}}{2} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} \wedge -\infty < x\right) \vee \left(\frac{\sqrt{5 - 2 \sqrt{6}}}{2} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} \leq x \wedge x < \infty\right) ( x ≤ − 2 5 − 2 6 + 2 2 + 2 3 ∧ − ∞ < x ) ∨ ( 2 5 − 2 6 + 2 2 + 2 3 ≤ x ∧ x < ∞ ) obtenemos la ecuación
( x − 2 ) ( x − 3 ) − 1 40 = 0 \left(x - \sqrt{2}\right) \left(x - \sqrt{3}\right) - \frac{1}{40} = 0 ( x − 2 ) ( x − 3 ) − 40 1 = 0 simplificamos, obtenemos
( x − 2 ) ( x − 3 ) − 1 40 = 0 \left(x - \sqrt{2}\right) \left(x - \sqrt{3}\right) - \frac{1}{40} = 0 ( x − 2 ) ( x − 3 ) − 40 1 = 0 la resolución en este intervalo:
x 1 = − 510 − 200 6 20 + 2 2 + 3 2 x_{1} = - \frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 1 = − 20 510 − 200 6 + 2 2 + 2 3 x 2 = 510 − 200 6 20 + 2 2 + 3 2 x_{2} = \frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 2 = 20 510 − 200 6 + 2 2 + 2 3 2. ( x − 2 ) ( x − 3 ) < 0 \left(x - \sqrt{2}\right) \left(x - \sqrt{3}\right) < 0 ( x − 2 ) ( x − 3 ) < 0 o
x < 5 − 2 6 2 + 2 2 + 3 2 ∧ − 5 − 2 6 2 + 2 2 + 3 2 < x x < \frac{\sqrt{5 - 2 \sqrt{6}}}{2} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} \wedge - \frac{\sqrt{5 - 2 \sqrt{6}}}{2} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} < x x < 2 5 − 2 6 + 2 2 + 2 3 ∧ − 2 5 − 2 6 + 2 2 + 2 3 < x obtenemos la ecuación
− ( x − 2 ) ( x − 3 ) − 1 40 = 0 - \left(x - \sqrt{2}\right) \left(x - \sqrt{3}\right) - \frac{1}{40} = 0 − ( x − 2 ) ( x − 3 ) − 40 1 = 0 simplificamos, obtenemos
− ( x − 2 ) ( x − 3 ) − 1 40 = 0 - \left(x - \sqrt{2}\right) \left(x - \sqrt{3}\right) - \frac{1}{40} = 0 − ( x − 2 ) ( x − 3 ) − 40 1 = 0 la resolución en este intervalo:
x 3 = − 490 − 200 6 20 + 2 2 + 3 2 x_{3} = - \frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 3 = − 20 490 − 200 6 + 2 2 + 2 3 x 4 = 490 − 200 6 20 + 2 2 + 3 2 x_{4} = \frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 4 = 20 490 − 200 6 + 2 2 + 2 3 Entonces la respuesta definitiva es:
x 1 = − 510 − 200 6 20 + 2 2 + 3 2 x_{1} = - \frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 1 = − 20 510 − 200 6 + 2 2 + 2 3 x 2 = 510 − 200 6 20 + 2 2 + 3 2 x_{2} = \frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 2 = 20 510 − 200 6 + 2 2 + 2 3 x 3 = − 490 − 200 6 20 + 2 2 + 3 2 x_{3} = - \frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 3 = − 20 490 − 200 6 + 2 2 + 2 3 x 4 = 490 − 200 6 20 + 2 2 + 3 2 x_{4} = \frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 4 = 20 490 − 200 6 + 2 2 + 2 3
Gráfica
-12.5 -10.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 0 200
Suma y producto de raíces
[src]
_________________ _________________ _________________ _________________
___ ___ / ___ ___ ___ / ___ ___ ___ / ___ ___ ___ / ___
\/ 2 \/ 3 \/ 490 - 200*\/ 6 \/ 2 \/ 3 \/ 490 - 200*\/ 6 \/ 2 \/ 3 \/ 510 - 200*\/ 6 \/ 2 \/ 3 \/ 510 - 200*\/ 6
----- + ----- - -------------------- + ----- + ----- + -------------------- + ----- + ----- - -------------------- + ----- + ----- + --------------------
2 2 20 2 2 20 2 2 20 2 2 20
( 510 − 200 6 20 + 2 2 + 3 2 ) + ( ( − 510 − 200 6 20 + 2 2 + 3 2 ) + ( ( − 490 − 200 6 20 + 2 2 + 3 2 ) + ( 490 − 200 6 20 + 2 2 + 3 2 ) ) ) \left(\frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2}\right) + \left(\left(- \frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2}\right) + \left(\left(- \frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2}\right) + \left(\frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2}\right)\right)\right) ( 20 510 − 200 6 + 2 2 + 2 3 ) + ( ( − 20 510 − 200 6 + 2 2 + 2 3 ) + ( ( − 20 490 − 200 6 + 2 2 + 2 3 ) + ( 20 490 − 200 6 + 2 2 + 2 3 ) ) )
2 2 + 2 3 2 \sqrt{2} + 2 \sqrt{3} 2 2 + 2 3
/ _________________\ / _________________\ / _________________\ / _________________\
| ___ ___ / ___ | | ___ ___ / ___ | | ___ ___ / ___ | | ___ ___ / ___ |
|\/ 2 \/ 3 \/ 490 - 200*\/ 6 | |\/ 2 \/ 3 \/ 490 - 200*\/ 6 | |\/ 2 \/ 3 \/ 510 - 200*\/ 6 | |\/ 2 \/ 3 \/ 510 - 200*\/ 6 |
|----- + ----- - --------------------|*|----- + ----- + --------------------|*|----- + ----- - --------------------|*|----- + ----- + --------------------|
\ 2 2 20 / \ 2 2 20 / \ 2 2 20 / \ 2 2 20 /
( − 490 − 200 6 20 + 2 2 + 3 2 ) ( 490 − 200 6 20 + 2 2 + 3 2 ) ( − 510 − 200 6 20 + 2 2 + 3 2 ) ( 510 − 200 6 20 + 2 2 + 3 2 ) \left(- \frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2}\right) \left(\frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2}\right) \left(- \frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2}\right) \left(\frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2}\right) ( − 20 490 − 200 6 + 2 2 + 2 3 ) ( 20 490 − 200 6 + 2 2 + 2 3 ) ( − 20 510 − 200 6 + 2 2 + 2 3 ) ( 20 510 − 200 6 + 2 2 + 2 3 )
9599 1600 \frac{9599}{1600} 1600 9599
_________________
___ ___ / ___
\/ 2 \/ 3 \/ 490 - 200*\/ 6
x1 = ----- + ----- - --------------------
2 2 20
x 1 = − 490 − 200 6 20 + 2 2 + 3 2 x_{1} = - \frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 1 = − 20 490 − 200 6 + 2 2 + 2 3
_________________
___ ___ / ___
\/ 2 \/ 3 \/ 490 - 200*\/ 6
x2 = ----- + ----- + --------------------
2 2 20
x 2 = 490 − 200 6 20 + 2 2 + 3 2 x_{2} = \frac{\sqrt{490 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 2 = 20 490 − 200 6 + 2 2 + 2 3
_________________
___ ___ / ___
\/ 2 \/ 3 \/ 510 - 200*\/ 6
x3 = ----- + ----- - --------------------
2 2 20
x 3 = − 510 − 200 6 20 + 2 2 + 3 2 x_{3} = - \frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 3 = − 20 510 − 200 6 + 2 2 + 2 3
_________________
___ ___ / ___
\/ 2 \/ 3 \/ 510 - 200*\/ 6
x4 = ----- + ----- + --------------------
2 2 20
x 4 = 510 − 200 6 20 + 2 2 + 3 2 x_{4} = \frac{\sqrt{510 - 200 \sqrt{6}}}{20} + \frac{\sqrt{2}}{2} + \frac{\sqrt{3}}{2} x 4 = 20 510 − 200 6 + 2 2 + 2 3
x4 = sqrt(510 - 200*sqrt(6))/20 + sqrt(2)/2 + sqrt(3)/2