

Racionalización
Presentation
•
Mathematics
•
11th Grade
•
Practice Problem
•
Medium
Vanessa Sánchez
Used 25+ times
FREE Resource
3 Slides • 6 Questions
1
Racionalización
"la maravilla del conjugado y de la diferencia de cuadrados"
2
Multiple Choice
El conjugado de x+3−5 es:
x+3+5
x−3+5
x−3−5
3
Multiple Choice
El conjugado de x+7 es:
x−49
x−49
x−7
4
Recorderis de la diferencia de cuadrados
a2−b2=(a−b)(a+b)
5
6
Multiple Choice
El conjugado que se aplicaría para resolver el x→4limx−4(x+5−3) sería:
x+5+3
x−5−3
x−5+3
7
Multiple Choice
Al tener la multiplicación del conjugado x−4(x+5−3)×x+5+3x+5+3
, se aplica la diferencia de cuadrados, quedando la siguiente expresión:
(x−4)(x+5+3)(x+5) 2−(3) 2=(x−4)(x+5+3)x+5−9
(x−4)(x+5+3)(x+5) 2+(3) 2=(x−4)(x+5+3)x+5+3
8
Multiple Select
El resultado de simplificar el numerador y expresiones semejantes, (x−4)(x+5+3)x+5−9
seria:
(x−4)(x+5+3)x−4=x+5+3
(x−4)(x+5+3)x−4=x+5+31
9
Poll
Por último, se reemplaza para encontrar el valor del límite x→4limx+5+31 es:
(4)+5+31=9+31=3+31=61
x+5+31=4−5+31=1+31=41
Racionalización
"la maravilla del conjugado y de la diferencia de cuadrados"
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