Math Problem Statement

determine a and b for which the system has a unique solution, no solution, infinite solution 3x -2 y + z = b, -5x - 8y + 9z = 3, 2x + y + az = -1

Solution

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Math Problem Analysis

Mathematical Concepts

Linear Algebra
Systems of Equations
Determinants

Formulas

Determinant of a 3x3 matrix: det(A) = a(ei − fh) − b(di − fg) + c(dh − eg)

Theorems

Determinant Theorem: A system of linear equations has a unique solution if and only if the determinant of its coefficient matrix is non-zero.
Consistency of Linear Systems: If the determinant is zero, check for consistency to determine if there are no solutions or infinitely many solutions.

Suitable Grade Level

Grades 10-12