Determinants Answers
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What is the determinant of ?
A
–14B
–3C
8D
112
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Which expression represents the determinant of ?
A
det(A) = (–4)(–7) – (–6)(–2)B
det(A) = (–4)(–7) + (–6)(–2)C
det(A) = (–6)(–2) – (–4)(–7)D
det(A) = (–6)(–2) + (–4)(–7)3
What is the determinant of ?
A
–74B
–51C
51D
694
What is the determinant of the coefficient matrix of the system ?
A
–1B
0C
3D
185
What is the determinant of ?
A
–18B
–8C
10D
186
What is the volume of the parallelepiped determined by the vectors a = , b = , and c = ?
A
4 cubic unitsB
20 cubic unitsC
24 cubic unitsD
56 cubic units7
What is the determinant of the coefficient matrix of the system ?
A
0B
3C
6D
78
Given the system , which is true?
A
The system has no solutions.B
The system has exactly one solution.C
The system has exactly three solutions.D
The system has an infinite number of solutions.9
What is the area of a triangle with vertices at (–2, –1), (4, –1), (6, 5)?
A
6 square unitsB
9 square unitsC
18 square unitsD
36 square units10
What is the determinant of the coefficient matrix of the system ?
A
0B
28C
130D
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