Class 9 Math MCQs - Chapter 15
Matrices and Determinants Trivia Questions & Answers PDF Download - 8
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Matrices and Determinants Test Questions and Answers PDF Download: MCQ 8
In matrices, the rows are denoted by
- A
- B
- R
- C
In a unit matrix, number of diagonal elements is/are
- 2
- 3
- 1
- 0
If ‘a’ is a real number, then a−1 is said to be
- inverse of a
- identity of a
- transpose of a
- determinant of a
Vertically arranged elements in a matrix are called
- columns
- rows
- determinants
- transpose
If all elements in a matrix are zeros, then it is called a
- column matrix
- diagonal matrix
- identical matrix
- null/zero matrix
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