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Matrices

Matrices. What is a Matrix?. A matrix is a rectangular array of numbers enclosed by brackets. Vocabulary. The numbers in the matrix are called elements The number of rows and the number of columns determine the dimensions of the matrix You always write the number of rows first For Example:

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Matrices

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  1. Matrices

  2. What is a Matrix? A matrix is a rectangular array of numbers enclosed by brackets.

  3. Vocabulary The numbers in the matrix are called elements The number of rows and the number of columns determine the dimensions of the matrix You always write the number of rows first For Example: 3x3 1x3 3x2

  4. Zero Matrix If all the elements of a matrix are zeros, the matrix is called a zero matrix It is denoted by Orxc

  5. Equal and Solving for Parts Two matrices are only equal if and only if they have the same dimensions and the elements in all corresponding positions are equal Give the dimensions for each matrix: , Find the value of each variable.

  6. Practice on Your Own Algebra Structure and Method Book 2 pg768 – 769 OE #1 – 18 WE #6 - 12

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