OpenStax, Algebra and Trigonometry 2e §11.5 Matrices and Matrix Operations · Example 3 · Linear Algebra · Matrices

Finding the Dimensions of the Given Matrix and Locating Entries

Given matrix $A :$

ⓐWhat are the dimensions of matrix $A ?$
ⓑWhat are the entries at $a_{31}$ and $a_{22} ?$
$A = 223141 07 - 2$

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OpenStax, Algebra and Trigonometry 2e · §11.5 Matrices and Matrix Operations · Example 3

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