Precalculus question
Use this system to find the value of the determinant: 3x + y = 3
x - 2y = 8
- –7
- 5
- 7
- −5
More
1 Expert Answer

Arturo O. answered 01/09/20
Tutor
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Experienced Physics Teacher for Physics Tutoring
The principal determinant is
D = 3(-2) - (1)(1) = -7
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Peter K.
determinant of what?01/09/20