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Apuntes de todo el temario de matemáticas I

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August 24, 2022
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17
Written in
2020/2021
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Amalia
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5. MATRICES.

,Matemáticas - Tema 5 ESQUEMA




MATRICES.

Matrices.
Definiciones básicas. Operaciones con matrices. Propiedades.
Rango de una matriz.

, Matemáticas - Tema 5 MATRICES


Definición.- Una matriz de orden m×n (m, n∈IN) es un conjunto
ordenado de números reales

𝑎𝑎11 𝑎𝑎12 𝑎𝑎13 ⋯ 𝑎𝑎1𝑛𝑛
𝑎𝑎21 𝑎𝑎22 𝑎𝑎23 ⋯ 𝑎𝑎2𝑛𝑛
,
⋮ ⋮ ⋮ ⋮
𝑎𝑎𝑚𝑚1 𝑎𝑎𝑚𝑚𝑚 𝑎𝑎𝑚𝑚𝑚 ⋯ 𝑎𝑎𝑚𝑚𝑚𝑚

es decir, una tabla en la cual el elemento aij ocupa el lugar determinado
por la fila i y la columna j.

El conjunto de todas las matrices de orden m×n se representa por Mmxn.

Si A∈ Mmxn escribiremos por comodidad A = (ai j).
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