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Exam (elaborations)

Exámen Números Complejos

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Este documento es una evaluacíon de números complejos de álgebra, de un curso con orientación científica.

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Institution
Secondary school
Study
Ciclo orientado
Course
School year
6

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Uploaded on
May 1, 2022
Number of pages
1
Written in
2021/2022
Type
Exam (elaborations)
Contains
Answers

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ESCUELA NORMAL “J.P.PRINGLES”

EVALUACIÓN: ÁLGEBRA APELLIDO Y NOMBRE: ………………………………

CURSO: 6° AÑO B2 PUNTAJE: ……..................

1. Completa el siguiente cuadro indicando con una cruz a qué conjunto/s numérico pertenecen los
números dados: (1 punto)

Número Real (R) Imaginario puro Complejo (C)
5i
-1/4 +7 i
√𝟏𝟕
√𝟏𝟏 – 0,5 i
̂
𝟏, 𝟐𝟓𝟒


2. Resolver la siguiente ecuación cuadrática: (1 punto)
x2 – 2x + 10 = 0


3. Para cada uno de los siguientes números complejos: z1 = - 4 +3 i y z2 = -5 i (4 puntos)

a) Indicar cuál es su parte real y cuál su parte imaginaria
b) Hallar su módulo.
c) Representar en un sistema de coordenadas cartesianas cada uno de los números complejos
dados con su respectivo opuesto y conjugado.


4. Resolver la siguiente operación y expresar el resultado como par ordenado (expresión cartesiana)
y en forma binómica: (1 punto)
z = 3 i 24 – 5 i19 + i38 =


1 4 2 1
5. Sabiendo que 𝑧1 = 2 + 5 𝑖, 𝑧2 = 3 − 4 𝑖, z3 =1 − i , calcular 𝑧1 − 𝑧2 + 𝑧3 (1 punto)


6. Sabiendo que 𝑧1 = 1 + 𝑖, 𝑧2 = −2 + 3𝑖, resolver: (2 puntos)
𝑧2
a) 𝑧1 . 𝑧2 b)
𝑧1
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