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11th Class Part 1 Mathematics Chapter 3 Test Online MCQs With Answers
Question # 1
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Question # 2
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Question # 3
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3×2
2×3
2×2
3×3
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Question # 4
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25
20
40
2a + 2b + 2c
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Question # 5
The additive inverse of a matrix A is:
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A
A
-1
- A
A
2
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Question # 6
A
-1
exists if A is:
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singular
nonsingular
symmetric
none
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Question # 7
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Question # 8
Two matrices X and Y are equal if and only if:
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X and Y are of same order
Their corresponding elements are equal
Both a and b
None of these
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Question # 9
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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Question # 10
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3×3
3×2
2×1
2×3
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Question # 11
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ab - cd = 0
ac - bd = 0
ad - bc = 1
ad - bc = 0
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Question # 12
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zero
non-singular
singular
none of these
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Question # 13
If any two rows of a square matrix are interchanged, the determinant of the resulting matrix:
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is zero
is multiplicative inverse of the determinant of the original matrix
is additive inverse of the determinant the original matrix
none of these
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