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11th Class Part 1 Mathematics Chapter 3 Test Online MCQs With Answers
Question # 1
If A is a square matrix, then A + A
t
is:
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Question # 2
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None
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Question # 3
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5
14
20
6
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Question # 4
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ab - cd = 0
ac - bd = 0
ad - bc = 1
ad - bc = 0
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Question # 5
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diagonal matrix
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Question # 6
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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Question # 7
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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Question # 8
If A is a square matrix, then A - A
t
is:
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Question # 9
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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Question # 10
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diagonal matrix
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Question # 11
If A = [aij] and B = [bij] are two matrices of same order r × s, then order of A - B is:
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r - s
r × s
r + s
none of these
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Question # 12
If A is non singular matrix then A
t
is:
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singular
nonsingular
symmetric
none
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Question # 13
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scalar matrix
diagonalmatrix
lower triangularmatrix
upper triangularmatrix
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