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Online Tests

11th Class FSC Mathematics Chapter 3 Test Online MCQs With Answers

Question # 1

[0] is a:

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Question # 2

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scalar matrix

diagonalmatrix

triangularmatrix

none of these

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Question # 3

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Question # 4

If A is a square matrix, then:

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|A^t| = A

|A^t| = -A

|A^t| = |A|

A^t= A

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Question # 5

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diagonal matrix

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Question # 6

If A is a matrix of order m × n, then the number of elements in each row of A is:

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m

n

m + n

m - n

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Question # 7

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1

-1

-6

6

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Question # 8

A matrix in which each element is 0 is called:

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Question # 9

If A is a square matrix, then A - A^t is:

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Question # 10

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3×3

3×2

2×1

2×3

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Question # 11

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Question # 12

If A is a square matrix, then A + A^t is:

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Question # 13

If each element of a 3 × 3 matrix A is multiplied by 3, then the determinant of the resulting matrix is:

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|A|³

27|A|

3|A|

9|A|

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Question # 14

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3×2

2×3

2×2

3×3

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Question # 15

A matrix of order m×1 is called:

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row matrix

column matrix

identity matrix

scalar matrix

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Question # 16

If A is a square matrix order 3 × 3 the |kA| equals:

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k |A|

k²|A|

k³ |A|

k⁴ |A|

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Question # 17

For a square matrix A, |A| equals:

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A^t

|A^t|

-|A^t|

-A^t

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Question # 18

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1

-5

-1

none

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Question # 19

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diagonal matrix

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Question # 20

If any two rows of a square matrix are interchanged, the determinant of the resulting matrix:

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is zero

is multiplicative inverse of the determinant of the original matrix

is additive inverse of the determinant the original matrix

none of these

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Question # 21

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25

20

40

2a + 2b + 2c

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