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UNIVERSIDAD TECNOLOGICA NACIONAL - FACULTAD REGIONAL AVELLANEDA
ÁLGEBRA Y GEOMETRÍA ANALÍTICA
Parcial I-A
Tema 1
Apellido y nombres del alumno: .......................................................................................................................
Especialidad: ……………………………………………………………………………...
Apellido y nombres del docente: …………………………………………………………………….
La condición para aprobar este parcial es tener bien resueltos como mínimo:
a) dos ejercicios de Geometría Analítica y uno de Álgebra, ó
b) dos ejercicios de Álgebra y uno de Geometría Analítica.
1
2
3
4
5
Calificación Final
IMPORTANTE : Usted debe presentar en las hojas que entrega, el desarrollo de todos los ejercicios, para justificar sus respuestas. NO USE LÁPIZ
...............................................................................................................................................................................
1) Calcular el Valor Principal de la siguiente exponencial compleja: z = (-1- i) (1-2i)
2) Sean los vectores a (6, 2 , -1), b (-2, -1, 3) y c (4, 0, -3)
a.- Investigar si los vectores dados son linealmente independientes
b.- Obtener al menos un vector coplanar con a y b . Justifique el procedimiento adoptado.
3) Sean los vectores a y b . Calcular || a || sabiendo que el ángulo entre los vectores a y b es π/3 radianes, que
|| b || = 4 y que el vector a - b es perpendicular al vector a
4) Las rectas L: (x-2)/3 = (y + 1)/4 = z/-2 y R: (x-2)/-1 = (y + 1)/3 = z/2 se intersectan, como resulta de la simple observación de las respectivas ecuaciones simétricas, en el punto de coordenadas (2,-1,0). Se pide:
a) Calcular la ecuación del plano que las contiene.
b) Obtener el menor ángulo que forman las rectas
5) a) Hallar la ecuación del plano que contiene al punto (0,0,4) y es simultáneamente perpendicular a los planos: 2x - 3y - 5 = 0 y β: x - 2z - 3 = 0.-
b) Calcular la distancia del punto Q (5,7,1) al plano calculado en el punto anterior.
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Enviado por: Amy Idioma: castellanoPaís: Argentina