Question # 1

A^-1 exists if A is:

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singular

nonsingular

symmetric

none

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1

-1

-6

6

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2

-2

5

-5

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9

-9

-6

none

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3×2

2×3

2×2

3×3

The trivial solution of the homogeneous linear equations is:

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(1, 0, 0)

(0, 1, 0)

(0, 0, 1)

(0, 0, 0)

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scalarmatrix

diagonalmatrix

lower triangularmatrix

uppertriangularmatrix

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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3×3

3×2

2×1

2×3

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diagonal matrix

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

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3×5

5×2

2×2

none

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

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0

1

-1

none of these

A matrix in which each element is 0 is called:

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If A and B are two matrices, then:

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A B = O

AB = BA

AB = I

AB may not be defined

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diagonal matrix

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diagonal matrix

If A is non singular matrix then A^t is:

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singular

nonsingular

symmetric

none

Two matrices X and Y are equal if and only if:

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X and Y are of same order

Their corresponding elements are equal

Both a and b

None of these

The order of a matrix is shown by:

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number of columns + number of rows

number of rows × number of columns

number of columns - number of rows

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

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