Question

Question No. 19
Marks: 1
The matrix whose all elements are
zero is
1. O 0 unit matrix
2. O Identity matrix
3. o
Null matrix
4. o
Row matrix​

Answer 1

Answer:

3. null matrix

A matrix is said to be zero matrix or null matrix if all its elements are zero. are all zero matrices of the order 1, 2 and 3 respectively. We denote zero matrix by O.