# 6134 Matrix Simultaneous Equations Calculator

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While you may use a calculator to solve these simultaneous equations, you are required to use matrices. To determine if you have use matrices, you will be asked for the determinant each time.

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### Create a matrix equation for the problem above. Find the value of the determinant, and the value of y. Use the following syntax for your answer. If the determinant is 7 and the value for y is 9 type : 7,9. If there is no solution, write undef or no solution.

Explanation
The answer "undef, no solution" indicates that there is no solution to the matrix equation. This means that the determinant of the matrix is zero, resulting in an inconsistent system of equations.

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### Create a matrix equation for the problem above. Find the value of the determinant, and the value of r. Use the following syntax for your answer. If the determinant is 7 and the value for r is 9 type : 7,9. If there is no solution, write undef or no solution. Remember with any square matrix, you can find the determinant using det() on your calculator.

Explanation
The matrix equation for the problem can be represented as [A]x = b, where [A] is the coefficient matrix, x is the variable matrix, and b is the constant matrix. Since the answer provided is in the format of the determinant and the value of r, it implies that the determinant of matrix [A] is -28 and the value of r is -2.

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### Create a matrix equation for the problem above. Find the value of the determinant, and the value of z, Use the following syntax for your answer. If the determinant is 7 and the value for z is 9 type : 7,9. If there is no solution, write undef or no solution. Remember with any square matrix, you can find the determinant using det() on your calculator.

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• Current Version
• Mar 19, 2023
Quiz Edited by
ProProfs Editorial Team
• Aug 21, 2014
Quiz Created by
Anthony Nunan

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