Question # 1

For a square matrix A, |A| equals:

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A^t

|A^t|

-|A^t|

-A^t

[0] is a:

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5

-5

-4

4

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

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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

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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3×3

3×2

2×1

2×3

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

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

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singular

nonsingular

symmetric

none

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3

-3

1/3

-1/3

A matrix of order m×1 is called:

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row matrix

column matrix

identity matrix

scalar matrix

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

If a matrix A is symmetric as well as skew symmetric, then:

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A is null matrix

A is unit matrix

A is triangular matrix

A is diagonal matrix

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