Question # 1

Choose an answer

25

20

40

2a + 2b + 2c

Choose an answer

scalar matrix

diagonalmatrix

triangularmatrix

none of these

Choose an answer

3×1

1×3

3×3

1×1

A^-1 exists if A is:

Choose an answer

singular

nonsingular

symmetric

none

The trivial solution of the homogeneous linear equations is:

Choose an answer

(1, 0, 0)

(0, 1, 0)

(0, 0, 1)

(0, 0, 0)

If AB = BA = I, then A and B are:

Choose an answer

equal to each other

multiplicative inverse of each other

additive inverse of each other

both singular

Choose an answer

scalarmatrix

diagonalmatrix

lower triangularmatrix

uppertriangularmatrix

If A is a square matrix, then:

Choose an answer

|A^t| = A

|A^t| = -A

|A^t| = |A|

A^t= A

Choose an answer

40

-40

26

-26

Choose an answer

1

-1

-6

6

If A = [aij] and B = [bij] are two matrices of same order r × s, then order of A - B is:

Choose an answer

r - s

r × s

r + s

none of these

Choose an answer

2

-2

5

-5

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

Choose an answer

|A|³

27|A|

3|A|

9|A|

If each element in any row or each element in any column of a square matrix is zero, then value of the determinant is:

Choose an answer

0

1

-1

none of these

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

Choose an answer

is zero

is multiplicative inverse of the determinant of the original matrix

is additive inverse of the determinant the original matrix

none of these

Choose an answer

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

Choose an answer

k |A|

k²|A|

k³ |A|

k⁴ |A|

Choose an answer

diagonal matrix

Choose an answer

9

-9

-6

none

Choose an answer

3×3

3×2

2×1

2×3

More Classes

Other Links

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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer