Notation of matrices

Intros
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Lessons
  1. Notation of Matrices Overview
Examples
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Lessons
  1. The Dimensions of a Matrix
    Determine the dimensions of the following matrices:
    1. Notation of matrices
    2. Notation of matrices
    3. Notation of matrices
    4. Notation of matrices
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    7. Notation of matrices
  2. Matrix Elements
    Find the matrix element (or value) of the following matrix
    Notation of matrices
    1. a1,1a_{1,1}
    2. a2,3a_{2,3}
    3. a4,6a_{4,6}
    4. a4,9a_{4,9}
    5. a2,5a4,9\frac{a_{2,5}}{a_{4,9}}
    6. 2(a3,7)2(a_{3,7})
    7. (a2,4)2(a_{2,4})^2
    8. 2(a4,2)+52(a_{4,2})+5
    9. a1,93\frac{a_{1,9}}{3}
    10. a3,5+a1,1a_{3,5}+a_{1,1}