# Algebra Examples

Assign the matrix the name to simplify the descriptions throughout the problem.
Find the reduced row echelon form of the matrix.
Perform the row operation on (row ) in order to convert some elements in the row to .
Replace (row ) with the row operation in order to convert some elements in the row to the desired value .
Replace (row ) with the actual values of the elements for the row operation .
Simplify (row ).
Perform the row operation on (row ) in order to convert some elements in the row to .
Replace (row ) with the row operation in order to convert some elements in the row to the desired value .
Replace (row ) with the actual values of the elements for the row operation .
Simplify (row ).
represents the set of the free variable columns remaining in the row reduced matrix.
Nullity is the dimension of the null space of , which is the same as the number of free variables columns remaining in the row reduced matrix.
The nullity of is .

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