10th Class Mathematics Chapter 3 TestUNIT 3: MATRICES AND DETERMINANTS

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. What is the type of the matrix :

   1. Row

   2. Scalar

   3. Null

   4. Rectangular

2. Which of these is a  matrix?

   1. [1 2]

   2. 

   3. 

   4. 

3. Which of the following is a singular matrix?

   1. 

   2. 

   3. 

   4. 

4.  is a/an ....... matrix:

   1. Rectangular

   2. Identity

   3. Column

   4. Row

5. A matrix where every element is zero is called:

   1. Identify

   2. Skew

   3. Row

   4. Null

6. For matrices A and B which is always true?

   1. A-B=B-A

   2. 

   3. 

   4. AB=1

7. Which is the order of a square matrix?

   1. 1 x 3

   2. 3 x 2

   3. 3 x 3

   4. 3 x 1

8. If then 3A-A will be:

   1. 

   2. 

   3. 

   4. 

9. If  then -4Q is:

   1. 

   2. 

   3. 

   4. 

10. ...... If 

    1. 

    2. 

    3. 

    4.