Question # 1

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1

-1

-6

6

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singular

non-singular

rectangular

null

If A = [a_ij], B = [b_ij] and AB = 0 then:

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A = 0

B = 0

either A = 0 or B = 0

A & B not necessarily zero

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

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singular

nonsingular

symmetric

none

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

[0] is a:

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If A is a square matrix, then:

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|A^t| = A

|A^t| = -A

|A^t| = |A|

A^t= A

A^-1 exists if A is:

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singular

nonsingular

symmetric

none

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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3×2

2×3

2×2

3×3

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2

-2

5

-5

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scalar matrix

diagonalmatrix

triangularmatrix

none of these

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40

-40

26

-26

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