Respuestas
Respuesta dada por:
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Hola Dani20042016,
1) Para este ejercicio entiendo por jerarquía, a ordenarlos de menor a mayor, seria así entonces,
![-(- \frac{2}{3}) = 0,6667 -(- \frac{2}{3}) = 0,6667](https://tex.z-dn.net/?f=-%28-+%5Cfrac%7B2%7D%7B3%7D%29+%3D++0%2C6667)
Rta:
-2.72468; 0.3333; 0.53; 0.6667
2)
a) simplemente reemplazamos,
![5x^{4}- 2x^{3} + \frac{5}{3} x^{2} +3x -7 5x^{4}- 2x^{3} + \frac{5}{3} x^{2} +3x -7](https://tex.z-dn.net/?f=+5x%5E%7B4%7D-++2x%5E%7B3%7D+%2B++%5Cfrac%7B5%7D%7B3%7D+x%5E%7B2%7D+%2B3x+-7+)
![5(-3)^{4}- 2(-3)^{3} + \frac{5}{3} (-3)^{2} +3(-3) -7 5(-3)^{4}- 2(-3)^{3} + \frac{5}{3} (-3)^{2} +3(-3) -7](https://tex.z-dn.net/?f=+5%28-3%29%5E%7B4%7D-++2%28-3%29%5E%7B3%7D+%2B++%5Cfrac%7B5%7D%7B3%7D+%28-3%29%5E%7B2%7D+%2B3%28-3%29+-7+)
![5(81) - 2(-27) + \frac{5}{3} (9) +(-9) -7 5(81) - 2(-27) + \frac{5}{3} (9) +(-9) -7](https://tex.z-dn.net/?f=5%2881%29+-+2%28-27%29+%2B+%5Cfrac%7B5%7D%7B3%7D+%289%29+%2B%28-9%29+-7+)
![405 +54 + 15 -9 -7 405 +54 + 15 -9 -7](https://tex.z-dn.net/?f=405+%2B54+%2B+15+-9+-7+)
![458 458](https://tex.z-dn.net/?f=458+)
b)
![2z^{2} + \frac{3}{2}z + 2 2z^{2} + \frac{3}{2}z + 2](https://tex.z-dn.net/?f=2z%5E%7B2%7D+%2B++%5Cfrac%7B3%7D%7B2%7Dz+%2B+2)
![2(- \frac{1}{2})^{2} + \frac{3}{2} (\frac{1}{2}) + 2 2(- \frac{1}{2})^{2} + \frac{3}{2} (\frac{1}{2}) + 2](https://tex.z-dn.net/?f=2%28-+%5Cfrac%7B1%7D%7B2%7D%29%5E%7B2%7D+%2B++%5Cfrac%7B3%7D%7B2%7D+%28%5Cfrac%7B1%7D%7B2%7D%29++%2B+2)
![2(\frac{1}{4}) + \frac{3}{4} + 2 2(\frac{1}{4}) + \frac{3}{4} + 2](https://tex.z-dn.net/?f=2%28%5Cfrac%7B1%7D%7B4%7D%29+%2B++%5Cfrac%7B3%7D%7B4%7D++%2B+2+)
![\frac{1}{2} + \frac{3}{4} + 2 \frac{1}{2} + \frac{3}{4} + 2](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D+%2B++%5Cfrac%7B3%7D%7B4%7D++%2B+2+)
![\frac{9}{4} \frac{9}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B4%7D)
3)
a)
![-4 x^{3} y^{2} - \frac{5}{4} x^{2} y^{3} + \frac{7}{2} x^{3} y^{2} -4 x^{3} y^{2} - \frac{5}{4} x^{2} y^{3} + \frac{7}{2} x^{3} y^{2}](https://tex.z-dn.net/?f=-4+x%5E%7B3%7D+y%5E%7B2%7D++-+%5Cfrac%7B5%7D%7B4%7D+x%5E%7B2%7D++y%5E%7B3%7D++%2B++%5Cfrac%7B7%7D%7B2%7D++x%5E%7B3%7D+y%5E%7B2%7D+)
![- \frac{1}{2} x^{3} y^{2} - \frac{5}{4} x^{2} y^{3} - \frac{1}{2} x^{3} y^{2} - \frac{5}{4} x^{2} y^{3}](https://tex.z-dn.net/?f=-+%5Cfrac%7B1%7D%7B2%7D++x%5E%7B3%7D+y%5E%7B2%7D++-+%5Cfrac%7B5%7D%7B4%7D+x%5E%7B2%7D++y%5E%7B3%7D++)
b)
![-[-( \frac{3}{2}x y^{2} + \frac{4}{3} y^{2} z^{3} - 4 xy^{2} )] -[-( \frac{3}{2}x y^{2} + \frac{4}{3} y^{2} z^{3} - 4 xy^{2} )]](https://tex.z-dn.net/?f=-%5B-%28+%5Cfrac%7B3%7D%7B2%7Dx+y%5E%7B2%7D++%2B+%5Cfrac%7B4%7D%7B3%7D++y%5E%7B2%7D++z%5E%7B3%7D+-+4+xy%5E%7B2%7D+%29%5D)
![\frac{3}{2}x y^{2} + \frac{4}{3} y^{2} z^{3} - 4 xy^{2} \frac{3}{2}x y^{2} + \frac{4}{3} y^{2} z^{3} - 4 xy^{2}](https://tex.z-dn.net/?f=+%5Cfrac%7B3%7D%7B2%7Dx+y%5E%7B2%7D++%2B+%5Cfrac%7B4%7D%7B3%7D++y%5E%7B2%7D++z%5E%7B3%7D+-+4+xy%5E%7B2%7D)
![- \frac{5}{2}x y^{2} + \frac{4}{3} y^{2} z^{3} - \frac{5}{2}x y^{2} + \frac{4}{3} y^{2} z^{3}](https://tex.z-dn.net/?f=-+%5Cfrac%7B5%7D%7B2%7Dx+y%5E%7B2%7D++%2B+%5Cfrac%7B4%7D%7B3%7D++y%5E%7B2%7D++z%5E%7B3%7D+)
1) Para este ejercicio entiendo por jerarquía, a ordenarlos de menor a mayor, seria así entonces,
Rta:
-2.72468; 0.3333; 0.53; 0.6667
2)
a) simplemente reemplazamos,
b)
3)
a)
b)
Dani20042016:
muchas gracias
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