Adding and Subtracting Matrices (VCE SSCE General Mathematics): Flashcards
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When can matrices be added or subtracted?
When can matrices be added or subtracted?
When they have same order (identical dimensions)
How to add matrices
How to add matrices
Add corresponding elements in same positions
How to subtract matrices
How to subtract matrices
Subtract corresponding elements in same positions
What is a zero matrix?
What is a zero matrix?
Matrix where all elements equal zero
Alternative name for zero matrix
Alternative name for zero matrix
Null matrix
Effect of adding zero matrix
Effect of adding zero matrix
Original matrix unchanged
Effect of subtracting zero matrix
Effect of subtracting zero matrix
Original matrix unchanged
Result when matrix subtracted from itself
Result when matrix subtracted from itself
Zero matrix
Meaning of 'same order' for matrices
Meaning of 'same order' for matrices
Same number of rows and columns
Key caution when subtracting matrices
Key caution when subtracting matrices
Watch negatives: subtracting negative equals adding positive