Math Problem Statement
Q5: Considere o sistema linear representado pela seguinte matriz aumentada: 1 2 1 −1 2 7 0 −1 1 8 −1 2 −2 2 −2 k Assinale o valor de k de forma que o sistema tenha so- lução: (A) 3 (B) 4 (C) 5 (D) 6 (E) 7 (F) 8 (G) 9 (H) 10 (I) Não sei
Solution
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Math Problem Analysis
Mathematical Concepts
Linear Algebra
Determinants
Systems of Linear Equations
Formulas
Determinant of a 4x4 matrix
Conditions for solution in linear systems (determinant ≠ 0)
Theorems
Cramer's Rule
Determinant Theorem (for uniqueness of solutions)
Suitable Grade Level
Undergraduate Mathematics / Advanced High School
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