Question # 1

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scalar matrix

diagonalmatrix

triangularmatrix

none of these

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

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5

14

20

6

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None

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

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0

1

-1

±1

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

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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

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scalar matrix

diagonalmatrix

lower triangularmatrix

upper triangularmatrix

If A is a matrix of order m × n and B is a matrix of order n × p then the order of AB is:

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p×m

p×n

n×p

m×p

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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ab - cd = 0

ac - bd = 0

ad - bc = 1

ad - bc = 0

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diagonal matrix

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3

-3

1/3

-1/3

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

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