Question # 1

If two rows (or two columns) in a square matrix are identical (i.e. corresponding elements are equal), the value of the determinant is:

Choose an answer

0

1

-1

±1

Choose an answer

5

14

20

6

Choose an answer

3×2

2×3

2×2

3×3

Choose an answer

diagonal matrix

Choose an answer

3

-3

1/3

-1/3

The order of a matrix is shown by:

Choose an answer

number of columns + number of rows

number of rows × number of columns

number of columns - number of rows

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

If the matrices A & B have the orders 2×3 and 5×2 then order BA is:

Choose an answer

3×5

5×2

2×2

none

Choose an answer

scalarmatrix

diagonalmatrix

lower triangularmatrix

uppertriangularmatrix

Choose an answer

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

zero

non-singular

singular

none of these

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

40

-40

26

-26

The additive inverse of a matrix A is:

Choose an answer

A

A^-1

- A

A²

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

Choose an answer

None

Choose an answer

3×1

1×3

3×3

1×1

More Classes

Other Links

Mathematics FA Part 1 Chapter 3 Online Test 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