Operations that can be applied to a matrix in the process of Gauss-Jordan elimination are options 1,2 and 4.
<h3 /><h3>What is gauss Jordan's elimination?</h3>
Gauss-Jordan Elimination is a matrix-based technique for solving linear equations or determining a matrix's inverse.
When using Gauss Jordan elimination, the following operations may be carried out on a matrix:
1. Replacing a row with twice that row
2. Replacing a row with the sum of that row and another row
3. Swapping row
The optional row(or column) procedures that can be employed are:
1. Alternate any two rows (or columns)
2. Scalar multiples of one row (column) are added or subtracted from another row (column) occurs when a row is substituted with the sum of another row and that row.
3. Multiply any row (or column) fully by a nonzero scalar, as seen below by substituting a row with two rows.
Hence, Gauss-Jordan elimination includes options 1,2, and 4.
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