Question

Which amongst the following is/are features of row echelon form of a mtrix (A) ?
Select one:
a. row containing all zeros placed at the bottom
b. all of these
c. a_11 should be equal to 1
d. all entries below a_11 should be zero

Answer 1

Answer:

Echelon form of matrix has the following characteristics:

1. The first non-zero entry of every row is 1.

2. The first non-zero entry in every row is one position right to the previous row.

3. The row with all zero elements will be below the rows having a non-zero element.

Answer 2

Answer:

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