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11th Class Part 1 Mathematics Chapter 3 Test Online MCQs With Answers
Question # 1
The order of a matrix is shown by:
Choose an answer
number of columns + number of rows
number of rows × number of columns
number of columns - number of rows
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Question # 2
If A is a square matrix, then:
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|A
^{t}
| = A
|A
^{t}
| = -A
|A
^{t}
| = |A|
A
^{t}
= A
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Question # 3
If A is a square matrix, then A + A
^{t}
is:
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Question # 4
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9
-9
-6
none
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Question # 5
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5
-5
-4
4
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Question # 6
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3×2
2×3
2×2
3×3
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Question # 7
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Question # 8
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zero
non-singular
singular
none of these
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Question # 9
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Question # 10
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40
-40
26
-26
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Question # 11
The additive inverse of a matrix A is:
Choose an answer
A
A
^{-1}
- A
A
^{2}
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Question # 12
Minors and co-factors of the elements in a determinant are equal in magnitude but they may differ in:
Choose an answer
order
position
sign
symmetry
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Question # 13
Choose an answer
scalarmatrix
diagonalmatrix
lower triangularmatrix
uppertriangularmatrix
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